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【单选题】
保留灌肠仅适用于（）A.
早孕病员
B.
结肠手术病员
C.
急腹症病员
D.
行痔疮手术者
E.
慢性肠炎病员
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举一反三
【单选题】It was the second time that Compton's experimental tests ______ a crucial role in the history of quantum theory
A.
playe d
B.
had played
C.
would play
D.
could play
【单选题】Henry's exam results ______ short of his father's expectation.
A.
gave
B.
put
C.
set
D.
came
【简答题】A．He's gathered the data. B．He's yzed the results. C．He's made an outline. D．He's written the first draft.
【单选题】One of the positive results from Milburn‘s study was that __________. 查看材料
A.
women were told to con centrate on their work
B.
women were given information about available administrative jobs
C.
women were encouraged to take on all the administrative jobs in the University
D.
women were encouraged to do more scholarly activities
【单选题】To read above the children' s level results in ______.
A.
the improvement of their reading ability
B.
higher marks in a subject
C.
the destruction of their interest of reading
D.
selling of more novels
【单选题】In Compton interactions, which of the following is true?
A.
The photon changes direction but does not lose energy.
B.
The electron may acquire any energy from zero up to the energy of the incident photon.
C.
The maxmium energy is imparted to the electron when the photon is scattered at 180 degrees.
D.
A neutrino is emitted.
E.
The probability of a Compton interaction increases continuously as photon energy increases.
【简答题】Compton effect
【单选题】Results of Compton scattering support
A.
special theory of relativity, not quantum mechanics
B.
quantum mechanics, not special theory of relativity
C.
both of the above
D.
none of the above
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