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【单选题】
质量为100kg的货物，平放在卡车底板上，卡车以4m/s2的加速度启动。货物与卡车底板无相对滑动。则在开始得4秒钟内摩擦力对该货物作的功W=_____A.
12400J
B.
12600J
C.
12800J
D.
13800J
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举一反三
【简答题】Kenny G
【单选题】Kenny G is not a (musician) I really had (much of) an opinion about (him) (until recently).
A.
musician
B.
much of
C.
him
D.
until recently
【判断题】Listen carefully and answer the following questions. Dr
Kenny is the caller’s doctor.
A.
正确
B.
错误
【单选题】Kenny, along with the three other men, ______ to represent the union at the meeting.
A.
are
B.
to be
C.
is being
D.
is
【单选题】----Where will Alice sit? ----The seat next to Kenny’s is _________.
A.
her
B.
him
C.
hers
D.
his
【简答题】When Elizabeth Kenny was a little girl, she fell off a horse and hurt her arm. Mrs. Kenny took her to a doctor in Toowoomba, Queensland. In the doctor’s, Elizabeth saw many bottles of medicine standin...
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