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【单选题】
某化合物在溶剂乙醇中测定的 UV-Vis 光谱在 305 nm 处有一最大吸收峰,若在正己烷中测定该吸收峰位移至 330 nm 处,产生该吸收峰的跃迁类型为( )A.
σ→σ*
B.
π→π*
C.
n→σ*
D.
n→π*
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【单选题】Fearing further attacks, most of the Afghans had ______ their homelands.
A.
deserted
B.
left
C.
abandoned
D.
quitted
【简答题】Fearing further attacks, most of the population had ____ the city. 因为害怕还要受到袭击,大多数市民已逃离该市。
【单选题】_______ is our belief that improvement in health care will lead to a stronger, more prosperous economy
A.
As
B.
That
C.
This
D.
It
【简答题】Fearing further attacks, most of the population had __________ the city as soon as possible. (positive; evidently; concentrated; abandoned; intelce)
【简答题】Employers fear they will be unable to recruit (招募) students with the skills they need as the economic recovery kicks in, a new survey ___21___. Nearly half of the organizations told researchers they w...
【单选题】Globalization refers to the shift toward a more integrated and ___________ world economy.
A.
interdependent
B.
independent
C.
nonrelated
D.
dependent
【单选题】Europe in the eleventh century underwent enormous social, technological, and economic changes, but this did not create a new Europe—it created two new ones. The north was developed as a rigidly hierar...
A.
succeeded
B.
balanced
C.
ended
D.
advanced
【单选题】what is the main meaning of"God-fearing" in the passage?
A.
a feeling of fearing the god
B.
a feeling of revering the god
C.
a feeling of hating the god
D.
a feeling of believing the god
【简答题】A．thinking B．seeing C．assuming D．fearing
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