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【单选题】
根据我国《钢质海船入级规范》规定，启动空气瓶应保证至少（）。A.
有2个空气瓶，瓶内压力为1.5～2.5MPa
B.
有3个空气瓶，瓶内压力为2.5～3.0MPa
C.
有2个空气瓶，瓶内压力为2.5～3.0MPa
D.
有3个空气瓶，瓶内压力为3.0～3.5MPa
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举一反三
【单选题】My father wants to give up _ , but it’s hard for him to _ .
A.
smoke; give up it
B.
smoking; give up it
C.
smoking; give it up
D.
smoke, give it up
【单选题】---- I’m taking a taxi to the airport to pick up my daughter. ---- ______________? I can give you a lift.
A.
Why not
B.
What for
C.
Why bother
D.
How come
【单选题】I saw my sister help _____ food to the kids just now. [ ]
A.
give out
B.
gave out
C.
give up
D.
gave up
【简答题】()I was trying to do is to persuade my brother to give up smoking. A)That B) Now C) What D) Which
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