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【单选题】
中学生随着身心的迅速发展,开始积极尝试脱离父母的保护和管理,渴望自己的行为像成人,不愿意被当做孩子看待。这说明中学生心理发展具有( )。(16年上)
A.
平衡性
B.
独立性
C.
D.
动荡性
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参考答案:
举一反三
【多选题】核酶的特点
A.
与底物结合专一性较差
B.
催化速度较慢
C.
与底物结合专一性较强
D.
催化速度较快
【简答题】Since it is to ask for sick leave, he often uses it as an excuse for staying away from school.
【单选题】The old man __________ in Tibet for two years as a volunteer teacher;it is an experience he  often mentions.
A.
served
B.
serves
C.
is serving
D.
has served
【简答题】Lin Feng is a student of Class One, Grade Seven. He likes basketball very much. He often plays it after school. And he often goes home late. His home is not far from school. And his mother knows that ...
【简答题】酶的底物专一性(substratespecificity)(名词解释)
【简答题】底物专一性(substrate specificity)
【单选题】两样本均数比较时,以下检验水准中犯第二类错误最小的是:
A.
α=0.05
B.
α=0.01
C.
α=0.15
D.
α=0.20
E.
α=0.30
【判断题】对学生读者而言,每本图书最长可以借阅 30天。
A.
正确
B.
错误
【单选题】He often travels, but never takes the plane. He thinks it is ______ .
A.
comfortable
B.
dangerous
C.
effective
【简答题】阅读理解。 Mr. Turner likes fishing. It is his favorite sport. He often fishes for hours without catching anything. But this does not worry him. Some fishermen couldn't catch fish. Sometimes they catch old...
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