室外气温降低时,家用空调器(冷气机)压缩机之运转电流将会有何变化()
A.增加
B.减少
C.不变
D.没有规律之变化
参考答案:B
28. -- Could you please buy me an MP4 as well as a digital camera, Mum?
-- You can choose , not both, my dear.
A.each
B.any
C.either
D.None
横向裂纹缺陷主要分布在连铸坯的内弧侧。