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【简答题】
用括号中所给词的适当形式填空。 1. For children, _____ (clean) their bedrooms themselves is a good habit. 2. Thanks for _____ (invite) me to your home for dinner. 3.  The girl is old enough _____ (make) her bed. 4.  There were a lot of _____ (visit)  at the aquarium yesterday. 5.  Mary is _____ (outgoing) than her brother.
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【简答题】He brought us a piece of (surprise) ______ news.
【单选题】下列电子式中错误的是
A.
钠离子:
B.
氢氧根离子:
C.
氨分子:
D.
一氯甲烷:
【单选题】逻辑主义学派、直觉主义学派和形式主义学派对数学的发展没有贡献。
A.
B.
【单选题】下列电子式中错误的是(  )
A.
B.
C.
【判断题】通过读秀学术搜索的文献传递功能,读者邮箱接收到的资料,可以在校园网范围之外打开阅读。
A.
正确
B.
错误
【简答题】Though he was born and brought up in America, ?Though he was born and brought up in America, he can speak ___________ Chinese. A)fluid          B) smooth         C) fluent        D) flowing
【单选题】What is true about the man?
A.
He was born in Scotland and brought up in England.
B.
He was born in England and brought up in Scotland.
C.
He was born and brought up in Scotland.
D.
He was born and brought up in England.
【单选题】Although he was born and brought up in America, he ______ Chinese fluently.
A.
speaks
B.
will speak
C.
can speak
D.
would speak
【单选题】若 ,则下列式子中错误的是(     )
A.
B.
C.
【单选题】随机变量 ,记 ,则下列式子中错误的是
A.
B.
C.
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