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【单选题】
If the quality of the goods _____ our satisfaction, we will place regular order with you.A.
turns out to
B.
proves
C.
proved to
D.
are to
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【简答题】电磁波在自由空间传播时 , 距离每增加一倍 , 损耗增加 ( )dB。
【单选题】Which of the following statements is NOT true according to the passage? ______
A.
Hutongs and Siheyuans have been regarded to be a cultural asset.
B.
The covering area of Shichahai is overl46 hectares.
C.
Foreigners like going to bars located in Hutongs.
D.
There are 30 historical and cultural protected areas in Beijing.
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