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【单选题】
(2017年上半年真题)在儿童身心发展存在高速发展期,某一时期某一方面的发展特别迅速而在其他阶段相对平稳。这一现象体现了儿童身心发展的阶段?( )A.
顺序性
B.
阶段性
C.
个别差别差异性
D.
不平衡性
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A.
to study
B.
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to study
B.
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A.
To find out if the student can return at a later time.
B.
To express that she is in the middle of something.
C.
To indicate that she has time to talk with the student.
D.
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A.
to study
B.
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on study
D.
in studying
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