根据现行《火灾自动报警系统设计规范》，消防电子设备凡采用交流供电时，即供电线路应采用（）供电
A.三相三线制
B.单相三线制
C.UPS装置
参考答案：B
166. Kunming is said to be a city of spring all the year round. But the weather there ______ unpleasant.
A．should be
B．may be
C．must
D．can be
每个空格只准填一个单词。（共10小题，每小题1分，满分10分）
小题1:The shop is o______ from 8:00 am to 6:00 pm every day.
小题2:The old man is sixty-five years old, but he l______ very young.
小题3:Lucy is an interesting girl. That’s w______ they all like her.
小题4:We must listen to the teacher c______ in class.
小题5:The bank is o_______ the post office.
小题6:The factory makes many p________ every day.
小题7:Alice is _______(compare) her coat with Mary’s.
小题8:What’s the (mean) of it?
小题9:Tom’s smile makes me ________(奇怪的).
小题10:There are a lot of ________ (教堂)in the world.
