单选题

在一项PER实验中，某大豆分离蛋白的摄入量为40．0g，动物增重为52．0g，对照组参考酪蛋白的摄入量为30．0g，动物增重为78．0g。

该大豆分离蛋白的PER值为

A:0．4 B:0．8 C:1．3 D:2．5 E:2．6

在一项PER实验中，某大豆分离蛋白的摄入量为40.0g，动物增重为52.0g，对照组参考酪蛋白的摄入量为30.0g，动物增重为78.0g。

该大豆分离蛋白的PER值为

A:0.4 B:0.8 C:1.3 D:2.5 E:2.6

据测定，精白面粉蛋白质的BV为63，PER为0.60，AAS为0.63。远低于全鸡蛋的BV、PER、AAS。

精白面粉蛋白质的PER为0.63，是指

A:每100g精白面粉含蛋白质0.63g B:精白面粉蛋白质的利用率为63% C:精白面粉蛋白质含氮量为63% D:精白面粉蛋白质的吸收率为63% E:实验动物每摄入1g精白面粉蛋白质，动物体重增加0.63g

Faster Effective Reading

A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and the general principles apply to any language. Naturally, you will not read every book at the same speed. You would expect to read a newspaper, for example, much more rapidly than a physics or economics textbookbut you can raise your average reading speed over the whole range of materials you wish to cover so that the percentage (百分比) gained will be the same whatever kind of reading you are concerned with.
The reading passages which follow are all of an average level of difficulty for your stage of instruction. They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at, say, four hundred words per minute, you might drop to two hundred or two hundred and fifty.
Perhaps you would like to know what reading speeds are common among native Englishspeaking university students and how those speeds can be improved. Tests in Minnesota, U. S. A, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy’s War and Peace in translation, at speeds of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve halfhour lessons, once a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.
The average untrained native speaker at the University of Minnesota reads at

A:about three hundred words per minute B:about two hundred and fortyfive words per minute C:about sixty words per minute D:about five hundred words per minute

{{B}}第三篇{{/B}}

Faster Effective Reading

? ?A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and the general principles apply to any language. Naturally, you will not read every book at the same speed. ?You would expect to read a newspaper, for example, much more rapidly than a physics or economics textbookbut you can raise your average reading speed over the whole range of materials you wish to cover so that the percentage (百分比) gained will be the same whatever kind of reading you are concerned with.
? ?The reading passages which follow are all of an average level of difficulty for your stage of instruction. They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at, say, four hundred words per minute, you might drop to two hundred or two hundred and fifty.
? ?Perhaps you would like to know what reading speeds are common among native Englishspeaking university students and how those speeds can be improved. ?Tests in Minnesota, U. S. A, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy’s War and Peace in translation, at speeds of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve halfhour lessons, once a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.
The average untrained native speaker at the University of Minnesota reads at

A:about three hundred words per minute B:about two hundred and fortyfive words per minute C:about sixty words per minute D:about five hundred words per minute

{{B}}第三篇{{/B}}

? ? ?{{B}} ? ? ? ? ? ? ? ? ? ? ? ? Faster Effective Reading{{/B}}
? ?A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and the general principles apply to any language. Naturally, you will not read every book at the same speed. You would expect to read a newspaper, for example, much more rapidly than a physics or economics textbook-but you can raise your average reading ?speed over the whole range of materials you wish to cover so that the percentage (百分比) gained will be the same whatever kind of reading you are concerned with.
? ?The reading passages which follow are all of an average level of difficulty for your stage of instruction. ?They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at, say, four hundred words per minute, you might drop to two hundred or two hundred and fifty.
? ?Perhaps you would like to know what reading speeds are common among native English-speaking university students and how those speeds can be improved. Tests in Minnesota, U. S. A, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy’s War and Peace in translation, at speeds of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve half-hour lessons, one a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.
The average untrained native speaker at the University of Minnesota reads at ______.

A:about three hundred words per minute B:about two hundred and forty-five words per minute C:about sixty words per minute D:about five hundred words per minute

{{B}}第三篇{{/B}}

Faster Effective Reading

? ?A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and the general principles apply to any language. Naturally, you will not read every book at the same speed. ?You would expect to read a newspaper, for example, much more rapidly than a physics or economics textbook—but you can raise your average reading speed over the whole range of materials you wish to cover so that the percentage (百分比) gained will be the same whatever kind of reading you are concerned with.
? ?The reading passages which follow are all of an average level of difficulty for your stage of instruction. They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at, say, four hundred words per minute, you might drop to two hundred or two hundred and fifty.
? ?Perhaps you would like to know what reading speeds are common among native Englishspeaking university students and how those speeds can be improved. ?Tests in Minnesota, U. S. A, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy’s War and Peace in translation, at speeds of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve half-hour lessons, once a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.
The average untrained native speaker at the University of Minnesota reads at

A:about three hundred words per minute B:about two hundred and forty-five words per minute C:about sixty words per minute D:about five hundred words per minute

The Instruction Register (IR) is normally used to point out( ).

A:the address of next execution instruction B:the address of last execution instruction C:the current execution instruction D:none of above

Instruction Register (IR) is normally used to point out

A:The address of next execution instruction B:The address of last execution instruction C:The current execution instruction D:None of above

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