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【单选题】
洗头时应使用洁净的温水,水温宜在()度之间。A.
20~40
B.
30~40
C.
30~50
D.
30~35
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【简答题】IV. Put the proper forms of the following words or expressions from the text in the blanks to complete the sentences. 1. The organization gives help and support to people in need, _________raising mon...
【简答题】Review the text—Global Warming and Its Effects, and mark the paragraph numbers according to the organization of the text. The first and last ones have been done for you. Paragraphs Organization Conten...
【简答题】Put the proper forms of the following words or expressions from the text in the blanks. be subject to maximum regulation ensure expenditure supplement ...
【简答题】超声波液位计是利用( )测距原理进行工作的。由于超声波可以在不同介质中传播,所以超声波液位计也分为:气介式、液介式及固介式三类,最常用的是气介式和液介式。
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