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第1题

1. 三刚片组成无多余约束的几何不变体系,其联结方式是( )。(本题3.0分) A、 以任意的三个铰相联 B、 以不在一条线上三个铰相联 C、 以三对平行链杆相联 D、 以三个无穷远处的虚铰相联
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第2题

The notice on the lobby reminds all the guests to make sure that their are well protected. A.values B.valueless C.val
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第3题

Seldom my boss in such good mood (心情) since I came to work in this company. A.I saw B.I have seen C.have I seen D.do
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第4题

Hardly ever _________ get a good job these days without a good education. A.people might B.do people C.people can D.
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