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【单选题】
不可以用于平喘治疗的药物是A.
氨茶碱
B.
托溴铵
C.
新斯的明
D.
胺醇
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举一反三
【简答题】The disrupted natural ecosystem has led to ______ of some species and put a lot of species in er.
【简答题】昆虫足的类型多样，蝗虫的后足为（），螳螂的前足为（），蜜蜂的后足为（）。
【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.
【简答题】昆虫胸足的类型较多，其中蜜蜂的后足为（），螳螂的前足为（），蝗虫的后足为（）。
【简答题】species，strain
【单选题】There used to be a church behind the cemetery,_____________?
A.
didn ’ t there
B.
used there
C.
usedn ’ t It
D.
didn ’ t it
【单选题】There used to be a cinema here before the war, _______?
A.
usedn ' t/wasn ' t there
B.
was there
C.
used there
D.
did there
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