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【简答题】
隧道爆破作业时，安全地点至爆破工作面的距离，在导坑内不应小于（）米，当采用全断面开挖时，应根据爆破方法与（）计算确定。
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举一反三
【单选题】What insurance value had Simon thought would be changed into?
A.
He had thought it would be changed into a 130% as the insurance value.
B.
He had thought it would be changed into a 150% as the insurance value.
C.
He had thought it would be changed into a 120% as the insurance value.
D.
He had thought it would be changed into a 110% as the insurance value.
【单选题】To get a better view of the stage, ____________________.
A.
our seats had to be changed.
B.
our seats were changed
C.
our seats are changed
D.
we had to change our seats.
【单选题】----Carol Walker didn’t turn up last time ,did she ? ----No .She _______.We had changed our plan .
A.
shouldn’t have come
B.
needn’t have to come
C.
didn’t need to come
D.
needn’t have come
【单选题】Had we not changed our reservations, we _______ in the crash.
A.
were all killed
B.
had all killed
C.
should all be killed
D.
should all have been killed
【单选题】—What do you think of the meal we have just had? —It is well worth ______ is changed for it.
A.
that
B.
what
C.
which
D.
how many
【单选题】—Shall we meet at six o'clock? —We had better meet a little late. Let's_______seven o'clock. [ ]
A.
to make it at
B.
to make it
C.
make it at
D.
make it
【单选题】We hadn’t seen each other for years and he had changed a great deal, so I didn’t _______ him at first.
A.
realize
B.
repeat
C.
know
D.
rec ognize
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