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【判断题】
0-3岁是婴幼儿语言的发生阶段，也称为语言发展的突发期。A.
正确
B.
错误
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举一反三
【单选题】The generous man devoted all he had _______ the victims, because of which he was highly praised.
A.
to help
B.
helping
C.
helped
D.
to helping
【单选题】Before going abroad he devoted all he could _______ his oral English.
A.
improve。m
B.
to improve
C.
improving
D.
to improving
【单选题】Before going abroad he devoted all he could _______ his oral English.
A.
improve
B.
to improve
C.
improving
D.
to improving
【单选题】The lawyer was so kind that he devoted all his spare time he had _____ the disabled. [ ]
A.
to helping
B.
helped
C.
helping
D.
to help
【简答题】请简术物联网的整体技术框架?
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