有关2，3－DPG的说法错误的是（）

A:全称为2，3－二磷酸甘油酸 B:其合成少于分解，不可在红细胞中贮存 C:是血红蛋白氧亲和力的重要调节因子 D:是红细胞糖酵解途径的中间代谢产物 E:2，3－DPG代谢是红细胞糖代谢的重要途径

There are no inevitable outcomes of social class in child rearing. At the same time, there is no question that social class is important factor in how children are raised and the kind of adults that children become. Regarding social class, sociologists have found that parents socialize their children into the behaviors and norms of their work worlds. Members of the working class are closely supervised and are expected to follow explicit rules at their jobs. If they do not follow the precise rules and do as they are told, they will not keep their jobs. Their experience influences how they deal with their children. As a result, their concern is less with their children’s motivations and more with their children’s outward conformity. Thus they are more apt to use physical punishment in managing their children. On the other hand, middle-class parents, who are expected to take more initiative on the job, are more concerned that their children develop curiosity, self-expression, and self-control. They are also more likely to withdraw privileges or affection than to use physical punishment.

A:the relation between social class of the parents and their children’s rearing B:the similarities between working class and middle class parents C:the differences between children of working class and the ones of middle class D:the relation between working class and middle class in their working places

There are no inevitable outcomes of social class in child rearing. At the same time, there is no question that social class is important factor in how children are raised and the kind of adults that children become. Regarding social class, sociologists have found that parents socialize their children into the behaviors and norms of their work worlds. Members of the working class are closely supervised and are expected to follow explicit rules at their jobs. If they do not follow the precise rules and do as they are told, they will not keep their jobs. Their experience influences how they deal with their children. As a result, their concern is less with their children’s motivations and more with their children’s outward conformity. Thus they are more apt to use physical punishment in managing their children. On the other hand, middle-class parents, who are expected to take more initiative on the job, are more concerned that their children develop curiosity, self-expression, and self-control. They are also more likely to withdraw privileges or affection than to use physical punishment.
This passage is about ______.

A:the relation between social class of the parents and their children’s rearing B:the similarities between working class and middle class parents C:the differences between parents of working class and the ones of middle class D:the relation between working class and middle class in their working places

There are no inevitable outcomes of social class in child rearing. At the same time, there is no question that social class is important factor in how children are raised and the kind of adults that children become. Regarding social class, sociologists have found that parents socialize their children into the behaviors and norms of their work worlds. Members of the working class are closely supervised and are expected to follow explicit rules at their jobs. If they do not follow the precise rules and do as they are told, they will not keep their jobs. Their experience influences how they deal with their children. As a result, their concern is less with their children’s motivations and more with their children’s out- ward conformity. Thus they are more apt to use physical punishment in managing their children. On the other hand, middle-class parents, who are expected to take more initiative on the job, are more concerned that their children develop curiosity, self-expression, and self-control. They are also more likely to withdraw privileges or affection than to use physical punishment.
This passage is about ______.

A:the relation between social class of the parents and their children’s rearing B:the similarities between working class and middle class parents C:the differences between children of working class and tile ones of middle class D:the relation between working class and middle class in their working places

There are no inevitable outcomes of social class in child rearing. At the same time, there is no question that social class is important factor in how children are raised and the kind of adults that children become. Regarding social class, sociologists have found that parents socialize their children into the behaviors and norms of their work worlds. Members of the working class are closely supervised and are expected to follow explicit rules at their jobs. If they do not follow the precise rules and do as they are told, they will not keep their jobs. Their experience influences how they deal with their children. As a result, their concern is less with their children’s motivations and more with their children’s out- ward conformity. Thus they are more apt to use physical punishment in managing their children. On the other hand, middle-class parents, who are expected to take more initiative on the job, are more concerned that their children develop curiosity, self-expression, and self-control. They are also more likely to withdraw privileges or affection than to use physical punishment.

A:the relation between social class of the parents and their children’s rearing B:the similarities between working class and middle class parents C:the differences between children of working class and tile ones of middle class D:the relation between working class and middle class in their working places

用于获得字符串S从第3个字符开始的3个字符的函数是

A:Mid$(S,2,3) B:Middle$(S,2,3) C:Right$(S,2,3) D:Left$(S,2,3)

用于获得字符串S从第3个字符开始的3个字符的函数是

A:Mid$(S,2,3) B:Middle$(S,2,3) C:Right$(S,2,3) D:Left$(S,2,3)

用于获得字符串s从第3个字符开始的3个字符的函数是

A:Mid＄(s，2，3) B:Middle＄(s，2，3) C:Right＄(s，2，3) D:Left＄(s，1，3)