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【单选题】
It didn’t take the children long to________ the correct answer.
A.
carry out
B.
figure out
C.
turn out
D.
give out
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参考答案:
举一反三
【判断题】斜楔夹紧机构的楔角α 越小,则增力比越大,自锁性能越好。( )
A.
正确
B.
错误
【简答题】“But that’s different. A person from their culture and a person from our culture could never really know each other.” “Like you know me?” his wife asked. “Yes. Like I know you.” ... “How can you under...
【简答题】As summer approaches, a lot of people will be in search of a great book to read while they are relaxing on the beach or by the pool. Here we have made a list of four e-books that we think are great su...
【单选题】Why are RDAs regularly updated?
A.
New discoveries in the science of nutrition are constantly being made.
B.
Americans' diets are constantly changing.
C.
As people age, their nutritional needs change.
D.
Very little is currently known about nutrition.
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σS 或σY
C.
σb
D.
σ-1
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σs
C.
σb
D.
σ-1
【单选题】Answer the questions about the words and expressions. If someone nags someone else, are they (a) encouraging them, or (b) criticizing them constantl
A.
T hey are  encouraging them constantly.
B.
They are criticizing them constantly.
【单选题】It rained hard for several days. _____, a flood occurred in South China this summer. [     ]
A.
Constantly
B.
Firmly
C.
Consequently
D.
Deliberately
【单选题】表示金属材料屈服点的符号是( )
A.
σ e
B.
σ S
C.
σ b
D.
σ p
【单选题】A turbocharged diesel engine will have an intake manifold pressure____________.
A.
constantly decreasing as engine load increase
B.
constantly increasing as the amount of supercharging increases
C.
approximately equal to exhaust manifold pressure at all times
D.
approximately equal to atmospheric pressure at all times
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