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【单选题】
新中国成立后,我国建成的第一条铁路是()。
A.
京广铁路
B.
铁路
C.
铁路
D.
青藏铁路
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举一反三
【单选题】5 Q4: An import declaration is not required if you always refer to a class with its ________ name, which includes its package name and class name.
A.
compile-time
B.
default package
C.
paired
D.
fully qualified name
【判断题】添加基于选择集的动画集时,动画集的内容不会随着源选择集的内容更改自动更新。
A.
正确
B.
错误
【单选题】在直径 400m 的工件上车削沟槽,若切削速度设定为 100m/min 则主轴转速宜选( ) r/min
A.
100
B.
69
C.
200
D.
79
【单选题】在直径400mm的工件上车削沟槽,若切削速度设定为100m( )r/min。
A.
69
B.
79
C.
100
D.
200
【单选题】If you are weak a subject, and asking a teacher for advice can help. [     ]
A.
at; working
B.
in; work hard
C.
at; work hard
D.
in; working hard
【单选题】Mr. Smith is one of the foreign experts who _____ in China. [     ]
A.
works
B.
is working
C.
are working
D.
has been working
【单选题】You have failed two tests. You'd better start working har-   der,________you won't pass the course. [     ]
A.
and
B.
so
C.
but
D.
or
【单选题】Harry _______ in this school since he came to China. [     ]
A.
is working
B.
was working
C.
will work
D.
has worked
【单选题】From the school name ______ on the package, we guessed that it might belong to a student of our school.
A.
saved
B.
marked
C.
prepared
D.
shown
【单选题】From the school name _______ on the package, we guessed that it might belong to a student of our school.
A.
saved
B.
marked
C.
prepared
D.
called
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