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【多选题】
层门自动关门装置的维保要点描述正确的是?A.
使用毛刷清理层门自动关门装置的积尘、油污，保证层门关闭过程中无阻碍。
B.
底层端站层门的检查，坑内进行。
C.
当轿厢在开锁区域之外时，人为打开层门20mm左右，自动关闭装置没有外力作用下使层门自动关闭，层门关闭过程应无阻碍。
D.
如不符合要求，根据制造单位《使用维护说明书》的要求，对自动关门装置进行调整。
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举一反三
【单选题】welcome to our hotel, what can i do for you?
A.
can you help us with our luggage?
B.
is there any discount?
C.
do you have a room?
【单选题】What can we infer from the last paragraph?
A.
Teachers welcome the imposition of technology uses.
B.
Higher administration's support is the most critical to the use of instrumental technologies.
C.
The teacher using instrumental technologies may have longer tenure.
D.
The instrumental technologies are easy to use.
【单选题】--Welcome! What can I do for you? --_____.
A.
I’d like to see a bike.
B.
Can I help you?
C.
Yes, you can.
D.
It’s all right.
【单选题】Welcome to our hotel, what can I do for you?
A.
I want to chenk in.
B.
I'd like a table for 4.
C.
My name is Tom,thanks.
D.
Yes, I want to check out.
【单选题】Welcome to Village Green Inn. What can I do _______ you, sir?
A.
in
B.
at
C.
for
D.
on
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