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【单选题】
当空调房间较多,建筑物的层高较低,并且各房间要求能够独立调节时,宜采用( )。A.
定风量空调系统
B.
风机盘管加新风空调系统
C.
变风量空调系统
D.
局部空调机组
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反馈参考答案：
举一反三
【单选题】( )________ is a fact that you've made a mistake again.
A.
It
B.
That
C.
There
D.
This
【单选题】You've made a mistake—you've______ the word.
A.
left out
B.
left off
C.
left behind
D.
left for
【单选题】— You've made a mistake and you've _____ the letter 'e'. — Sorry, I'll be more careful next time. [ ]
A.
left out
B.
left over
C.
left
D.
left for
【单选题】听力原文：M: Look at the long waiting line. I'm glad you've made a reservation. W: Because I know a lot of people now like eating out, especially on weekends. M: Yes, what's more, this place is very popula...
A.
At a hospital.
B.
At a restaurant.
C.
At a railway station.
D.
At a booking office.
【单选题】下列哪项属于心功能三级( )
A.
病人患有心脏病但体力活动不受限
B.
体力活动轻度受限
C.
体力活动明显受限
D.
不能从事任何体力活动
E.
病人患无心脏病但体力活动受限
相关题目：
【单选题】You've made a mistake—you've______ the word.
A.
left out
B.
left off
C.
left behind
D.
left for
参考解析：
知识点：
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