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【单选题】
The short-run market supply curve in a perfectly competitive industry ( )A.
shows the total quantity supplied by all firms at each possible price.
B.
is perfectly inelastic at the market price.
C.
is perfectly elastic at the market price.
D.
is usually downward-sloping.
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举一反三
【单选题】In the car accident, the woman _____ badly. [ ]
A.
hurt
B.
was hurt
C.
was hurted
D.
had hurt
【单选题】The little child was knocked down by a car and badly______ yesterday afternoon.
A.
injured
B.
damaged
C.
harmed
D.
ruined
【单选题】执行下列程序段，结果为______。import tensorflow as tfx = tf.Variable(tf.constant([5, 6, 7]))x.assign([1, 2, 3])x.assign_add([3, 2, 1])print(x.numpy())print(x.trainable)
A.
[4 4 4] True
B.
[8 8 8] True
C.
[8 8 8] 报错
D.
[4 4 4] 报错
【单选题】The teacher was struck by a car and ______ badly.
A.
harmed
B.
damaged
C.
injured
D.
ruined
【单选题】While crossing the road, an old man was knocked down by a car and badly ______. [ ]
A.
wounded
B.
ruined
C.
injured
D.
harmed
【单选题】Although Diane survived the car crash, her arms and legs were badly injured and ______, her car was destroyed.
A.
in all
B.
in return
C.
in relief
D.
in addition
【单选题】----I hear that Tom was badly injured in a car accident and is in hospital now. -----_________, let’s pay a visit to him.
A.
If any
B.
If so
C.
When possible
D.
When necessary
【单选题】已知 x = {1, 2, 3},那么执行语句 x.add(3) 之后,x的值为()。
A.
{1,2,3,3}
B.
{1,2}
C.
{4,5,6}
D.
{1,2,3}
【单选题】While crossing the street, an old man was knocked down by a car and badly __________.
A.
wounded
B.
ruined
C.
injured
D.
harmed
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