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【单选题】
由于端盖在工作过程中要承受冲击载荷,为增强强度和冲击,获得纤维组织,多采用 ( ) 加工。A.
车削
B.
铣削
C.
机加工
D.
铸造
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【单选题】Uncle Li and Uncle Wang live in the low and broken houses because ______.
A.
they hope to save money
B.
they're both poor
C.
they're not far from their farms
【简答题】阅读理解。 Uncle Li and Uncle Wang are good friends. They live next to each other and their farms are both at the foot of the mountain. So they can help each other. But neither of them likes to use his hea...
【单选题】Uncle Li and Uncle Wang were unhappy because ______.
A.
they had sustained losses in business
B.
they had lost some money in the city
C.
other people profited in the city
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