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【单选题】
冬季北方窗户上的冰花、金属器皿上的锈迹、瓷器的碎片等，都属于（）。
A.
不规则形
B.
偶然形
C.
几何形
D.
有机形
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【单选题】Matt mason, as director of the Robotics Institute at Carnegie Mellon University has seen the future of our kitchens. Mason likes thinking (67) how machines can make our lives easier by taking (68) the...
A.
dominate
B.
clean
C.
realize
D.
decorate
【单选题】对于选择性重传协议，接收方窗口序号为3、4，而收到序号为2的PDU，则接收方应（）。
A.
将序号为2的PDU递交高层，并向A返回确认
B.
丢弃序号为2的PDU，并返回确认
C.
丢弃序号为2的PDU，不进行确认
D.
将序号为2的PDU上交给高层，不进行确认
【单选题】In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of a comet (彗星). When the fragments (碎片) landed in the southern part of the giant planet, the explosions were watc...
A.
give an accurate description of the possible disaster in the future
B.
prove that humans will sooner or later be destroyed
C.
tell the historical development of the Earth
D.
warn of a possible disaster in the future
相关题目：
【单选题】Matt mason, as director of the Robotics Institute at Carnegie Mellon University has seen the future of our kitchens. Mason likes thinking (67) how machines can make our lives easier by taking (68) the...
A.
dominate
B.
clean
C.
realize
D.
decorate
【单选题】对于选择性重传协议，接收方窗口序号为3、4，而收到序号为2的PDU，则接收方应（）。
A.
将序号为2的PDU递交高层，并向A返回确认
B.
丢弃序号为2的PDU，并返回确认
C.
丢弃序号为2的PDU，不进行确认
D.
将序号为2的PDU上交给高层，不进行确认
【单选题】In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of a comet (彗星). When the fragments (碎片) landed in the southern part of the giant planet, the explosions were watc...
A.
give an accurate description of the possible disaster in the future
B.
prove that humans will sooner or later be destroyed
C.
tell the historical development of the Earth
D.
warn of a possible disaster in the future
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