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【多选题】
隧道洞身开挖采用台阶法时选择何种台阶法的两个决定条件是A.
开挖断面的大小
B.
初期支护形成闭合断面的时间要求
C.
上断面施工机械对场地大小的要求
D.
工期要求
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举一反三
【单选题】—What’s the matter, Linda? —I have a toothache and I ____________ terrible.
A.
smell
B.
feel
C.
taste
D.
sound
【单选题】Researchers conducted breeding studies with two species of mice. Species A was monogamous, while Species B was not.Supporters of the competing parental interest theory hypothesized that the monogamous...
A.
When females from Species A were bred with males from Species B, the resulting offspring were extremely small.
B.
When females from Species A were bred with males from Species B, the resulting offspring were extremely large.
C.
When females from Species B were bred with males from Species A, the resulting offspring were extremely large.
D.
The offspring of Species B mice were consistently smaller than the off-spring of Species A mice.
【单选题】What is the lifespan of a species connected to?
A.
The lifespan of a species is connected to the speed at which the heart beats.
B.
The lifespan of a species is connected to the size of the species.
C.
The lifespan of a species is connected to the speed at which the species runs.
【单选题】I have( )three terrible English examinations this week.
A.
observed
B.
operated
C.
undergone
D.
suffered
【简答题】species，strain
【单选题】Rarely ______ such a terrible sight.
A.
I have seen
B.
have I seen
C.
I saw
D.
had I seen
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