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【单选题】
脊髓前角α运动神经元传出冲动增加，使( )。A.
梭外肌收缩
B.
梭内肌收缩
C.
腱器官传入冲动减少
D.
肌梭传入冲动增加
E.
梭内肌和梭外肌都收缩
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举一反三
【单选题】They say this kind of fruit good and well.
A.
tastes; is sold
B.
is tasted; sells
C.
tastes; sells
D.
is tasted; is sold
【单选题】________ they are observing can be tested in a practical way, scientists will use experiments.
A.
If
B.
All that
C.
What
D.
If what
【简答题】差分放大电路的差模信号是两个输入端信号之间的 。
【单选题】This kind of apple tastes andsells
A.
． well ； well
B.
． good ； good
C.
． good ； well
D.
． well ； good
【单选题】It can not be denied that the existing resources on earth will be depleted, but scientists are______to concede the inevitability of that day,______that new energies can be found in the near future.
A.
bound… assuming
B.
unprepared … skeptical
C.
hesitant… convinced
D.
likely… realizing
E.
eager … hypothesizing
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