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【判断题】
瓦当上的纹饰集绘画，浮雕，书法，工艺美术，匠心于一身，以其独特的艺术形式和装饰手法，成为中国古代艺术宝库中的珍宝。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【单选题】Hardly the helicopter _______ when the waiting crowd ran toward it.
A.
had...landed
B.
has...landed
C.
did...landed
D.
was... landing
【简答题】Hardly ________ the helicopter ________ when the waiting crowd ran toward it. A) had ..., landed B) has ..., landed C) did..., land D) was..., landing
【单选题】A small fuel spillage has occurred during helicopter refueling. After the leak has been stopped and fire-control personnel have been notified and are standing by，the next step is to（）.
A.
proceed with fueling operation
B.
have helicopter move to a safer location
C.
wash spilled fuel away with a flood of water
D.
clean spilled fuel with rags
【单选题】The FBI has been called in to help __________ the tragic helicopter crash that killed NBA champion Kobe Bryant, and his teenage daughter.
A.
neglect
B.
investigate
C.
insert
D.
emerge
【单选题】Hardly_____ the helicopter______ when the waiting crowd ran towards it.
A.
has…landed
B.
had…landed
C.
would…land
D.
was…landing
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