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【判断题】
实验室内只宜存放少量短期内需用的试剂,大量试剂应放在试剂库内。A.
正确
B.
错误
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【单选题】听力原文：M: How long will it take to mail this letter to London? W: About two weeks. Q: What Call we learn from the dialogue? (25)
A.
The man will mail a letter from London.
B.
The woman works in a post office.
C.
The man is a traveler.
【单选题】S1: How long does it take to change the engines from ahead to astern? S2: It takes 30 seconds to change the engines from ahead to astern. Q: How long will it take to change the engines from ahead to a...
A.
30 seconds
B.
13 seconds
C.
Half an hour
D.
Half a second
【单选题】听力原文：W: Can I help you? M: Thanks. How long will it take to London by airmail? Q: Where are they talking? (23)
A.
In a post office.
B.
In a cinema.
C.
At home.
【简答题】S1:How long does it take to change the engines from ahead to astern?S2:It takes 30 seconds to change the engines from ahead to stern.Q:How long will it take to change the engines from ahead to aster...
【单选题】下列关于关键线路和关键工作的表述，错误的是( )。
A.
总持续时间最长的线路为关键线路
B.
关键线路的长度就是网络计划的总工期
C.
总时差为零的工作为关键工作
D.
关键线路在执行过程中可能会转移
【简答题】Q: How long will it take me to get there? A:_______
【单选题】听力原文：W: How long will it take you to fix my watch? M: I'll call you when it's ready. Q: What is the man going to do? (8)
A.
He wants the woman to fix his watch.
B.
He will call her when the watch is fixed.
C.
He wants her to fix the watch within one week.
D.
He doesn't want to go home.
【单选题】Q: How long will it take for them to arrive at the pilot station?
A.
About one hour.
B.
Half an hour.
C.
One and half hours .
D.
Not mentioned.
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