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【判断题】
铰,铰削余量越小,铰的表面越光洁。A.
正确
B.
错误
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【简答题】4 China’s _______ dates back over 3000 years.
【简答题】Over 3000 ____________ were lost or misdirected at that airport. (luggage)
【简答题】C Flags have existed for over 3000 years.The earliest flags were wooden or metal poles topped with a carving.About 2000 years ago pies of fabric were added to some poles for decoration.Over the next 5...
【简答题】阅读理解 Flags have existed for over 3000 years. The earliest flags were wooden or metal poles topped with a carving(雕刻品). About 2000 years ago pieces of fabric were added to some poles for decoration. Ov...
【单选题】341海尔集团原来仅生产电冰箱,现在已生产各种家用电器、 通信设备、医药等多种类产品。该企业采用的产品组合策略是
A.
扩大产品组合
B.
缩减产品组合
C.
产品延伸
D.
双向延伸
【单选题】不引起呼吸道感染的一组病毒是
A.
流感病毒、麻疹病毒、ECHO病毒
B.
风疹病毒、EB病毒、腺病毒
C.
冠状病毒、柯萨奇病毒
D.
呼吸道合胞病毒、腮腺炎病毒
E.
流行性乙脑病毒、轮状病毒
【单选题】So far we _____over 3000 trees.
A.
planted
B.
have planted
C.
plant
D.
have been planted
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