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【多选题】
抗心绞痛药物主要通过哪三个环节发挥疗效A.
降低心肌耗氧量
B.
增加心肌供血供氧量
C.
抑制血小板聚集、黏附，抗血栓形成
D.
增加心肌耗氧量
E.
减少心肌供血/氧量
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【简答题】直流电动机主要由( )、( )、机壳、端盖、( )与刷架等组成。
【单选题】The mice in northern Europe move when ______.
A.
they give birth
B.
the weather is bad
C.
the place gets too crowded
D.
they haven't enough food
【单选题】The mice_ when the cat came.A.B.C.D.
A.
rambled
B.
lingered
C.
sauntered
D.
scampered
【单选题】—Look at the noisy kids! —Haven’t you heard the saying “When the cat is away, the mice ______?”
A.
play
B.
played
C.
are playing
D.
will play
【单选题】When the cat’s away, the mice will play.
A.
He is very proud and satisfied with himself.
B.
People do what they want and have fun when there is no supervision.
C.
You reveal a secret or a surprise by accident.
【简答题】直流电动机主要由____、____、____、____、机壳和端盖等主要部件构成
【简答题】直流电动机主要由( )、( )、机壳、端盖、( )与刷架等组成。
【单选题】The cat______ when it has eaten all the mice and rats.
A.
will eat the cattle in the village
B.
will eat neither cattle nor men
C.
will eat men in the houses
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