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【单选题】
鼓风瀑气池的有效水深一般为（）A.
2～3m；
B.
4～6m；
C.
6～8m；
D.
8～9m。
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反馈参考答案：
举一反三
【单选题】They were pushed into battle ______.
A.
unprepared
B.
unpreparedly
C.
not prepared it
D.
without preparing it
【简答题】She realized that being unable to speak a foreign language was a major ________to her career. A) approval B) obstacle C) advantage D) bound
【单选题】The author's major conclusion about mistakes in foreign language learning is that ______.
A.
mistakes are not important in the process of learning a language
B.
learners are often very afraid of making mistakes
C.
making mistakes can help the learner discover the rules
D.
native speakers often do not tell foreign language learners about their mistakes
【简答题】the first sector to price products according to how much customers were prepared to spend
【简答题】李叔叔2005年第四季度收到的电子邮件数量如下表． 月份 十月 十一月 十二月 数量（件） 28 18 36 根据此表中的数据，完成统计图．
【单选题】Saving language should be the major concern of any small community whose language is under threat.
A.
YES
B.
NO
C.
NOT GIVEN
【单选题】The author's major conclusion about the function of mistakes in foreign language learning is that______.
A.
mistakes are not important in the process of learning a language
B.
learners are often very afraid of making mistakes
C.
making mistakes can help the learner discover the rules of the language
D.
native speakers often do not tell foreign language learners about their mistakes
【简答题】根据北京统计局公布的数据显示，2007年第一季度北京主要旅游景点共接待国内外游客一千八百五十万三千人次，写作______人次，四舍五入到万位约是______万人次．
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