局部等电位联结（10cal equipotential bonding）

电子天平的CAL键的功能是（）

A:去皮 B:清零 C:校准 D:计数

常用热值单位的换算：1卡（ｃａｌ）＝（）焦（J）.

A:4.066 B:4.186 C:4.976 D:4.496

1cal等于（）。

A:0.4184J B:4.184J C:0.24J D:2.4J

血清CAl25适用于（）

A:绒癌  B:宫颈癌  C:子宫内膜癌  D:无排卵性功能失调性子宫出血  E:子宫内膜异位症

CAl561指代的是(　)。

A:中国国际航空公司自北京返南京的回程航班 B:中国国际航空公司自北京至南京的去程航班 C:中国南方航空公司自北京至南京的去程航班 D:中国南方航空公司自北京返南京的回程航班

CAl561指代的是( )。

A:中国国际航空公司自北京返南京的回程航班 B:中国国际航空公司自北京至南京的去程航班 C:中国南方航空公司自北京至南京的去程航班 D:中国南方航空公司自北京返南京的回程航班

CAL

Computer-assisted language leaming refers to the use of a computer in the teaching or learning of a second or foreign language. According to Richards et al (AIIH), it may take the form of: activities which parallel learning through other media but which use the facilities of the computer; activities which are extensions or adaptations of print-based or classroom based activities; actitivities which are unique to CALL.

CAI and CAL

CAI refers to computer-assisted instruction, which is the use of a computer in a teaching program. They may include:
a)A teaching program which is presented by a computer in a sequence. The student responds on the computer, and the computer indicates whether the responses are correct or incorrect.
b)The use of computers to monitor student progress, to direct students into appropriate lessons, material, etc. This is also called computer-managed instruction.
CAL refers to computer-assisted learning.CAL and CAI deal with teaching and learning in general. The first kind of CAL programs which were developed reflected principles similar to programmed instruction. The computer leads the students through a learning task step-by-step, asking questions to check comprehension. Depending on the student’s response, the computer gives the student further practice or progresses to new material. In more recently, CAL courseware students are able to interact with the computer and perform higher-level tasks while exploring a subject or problem.