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【简答题】
地球表面虽然约70%被覆盖，但能够直接用于生产和生活的淡水大约多少?
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皮皮学刷刷变学霸
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【简答题】This library is the (modern) ______ building I have ever visited in this city.
【单选题】It is reported that the worst pedestrian jam in this city occurs around this crossroads.
A.
confession
B.
congestion
C.
digestion
D.
exhaustion
【单选题】We lived in this city. We had many joys. A. We lived in this city, having many joys. B. We lived in this city, and have many joys. 哪一个句子是正确的?A or B
A.
A
B.
B
【简答题】四种引起细菌基因重组的方式是______、______、______和______。
【单选题】It is reported that the worst pedestrian jam in this city occurs around this crossroads.
A.
confession
B.
congestion
C.
digesfon
D.
exhaustion
【单选题】You will see this product____wherever you go in this city.
A.
advertise
B.
to be advertised
C.
advertised
D.
advertising
【多选题】水路运输的缺点是( )。
A.
受自然气象条件因素影响大。
B.
运送速度慢，准时性差，经营风险增加。
C.
航行风险大，安全性差。
D.
营运范围受到限制，如果没有航道则无法运输。
E.
搬运成本与装卸费用高，并且装卸搬运时间较长。
【简答题】By this time next year the Smiths______(live)in this city for ten years．
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