空调机组的新风干管为800X250,设在内廊吊顶内,要求吊顶与梁底净高不小于()。
A.500mm
B.400mm
C.300mm
D.200mm
参考答案:B
根据拼音写出汉字。
摩(suō) _____ (zì) 情_____ 晶(yíng)_____ 剔透 (xuān)_____然大波
—Could you tell me what time the train leaves Hefei for Beijing?
—I'm afraid you need to _____ on the Internet. [ ]
A. look for it
B. look at it
C. look it over
D. look it up