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【简答题】
梁上的载荷有三种形式:集中载荷、 和集中力偶
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】I've (got) five brothers each of (them) is quite different (from) (the others)
A.
got
B.
them
C.
from
D.
the others
【单选题】听力原文：M: I've gotten so busy that I can hardly find time for any outside activities. W: Do you still have time for fishing? M: Only once in a while now, but I still consider it my hobby. Q: What does t...
A.
He has other hobbies now.
B.
He went fishing once.
C.
He had to quit fishing.
D.
He goes fishing sometimes.
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