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【单选题】
下列有关叶酸的说法，错误的是A.
主要经十二指肠和空肠上段吸收
B.
促进氨基酸之间的转换
C.
参与嘌呤的从头合成
D.
吸收需要内因子的协助
E.
妊娠妇女需要量增加
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举一反三
【单选题】Of all the areas of learning, the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior. of most people. 'The burnt child fears t...
A.
attitudes affect our actions
B.
teachers play a significant role in developing or changing pupils' attitudes
C.
attitudes can be changed by some classroom experiences
D.
by their attitudes teachers affect pupils' attitudes unintentionally
【单选题】Of all the areas of learning the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior. of most people. 'The burnt child fears th...
A.
attitudes affect our actions
B.
teachers play a significant role in developing or changing pupils' attitudes
C.
attitudes can be changed by some classroom experiences
D.
the elementary school is a more effective milieu (环境) for developing wholesome attitudes than high school or college
【单选题】Of all the areas of learning the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior. of most people. 'The burnt child fears th...
A.
attitudes affect our actions
B.
teachers play a significant role in developing or changing pupils' attitudes
C.
attitudes can be changed by some classroom experiences
D.
the elementary school is a more effective milieu for developing wholesome attitudes than high school or college
【单选题】对于程序段int x=-1; do { x=x*x; }while(!x);说法正确的是( )。
A.
是死循环
B.
循环执行两次
C.
循环执行一次
D.
有语法错误
【简答题】四五折是十分之( ),改写成百分数是( )
【判断题】Learning is the most important character of culture where and how can we learn is easy to explain.( )
A.
正确
B.
错误
【简答题】One of the most difficulties in learning a language is learning the idiomatic phrases, slang and common usage of native speakers. These four books focus on giving students a hand when learning North A...
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