皮皮学，免费搜题
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搜题
【单选题】
代号为30310的单列圆锥滚子轴承的内径为 。A.
10mm
B.
100mm
C.
50mm
D.
20mm
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】-- Do you know everyone from Class One? -- Er…, I know some of ______.
A.
they
B.
them
C.
their
【多选题】关于联合体投标,下列说法正确的有( )。
A.
联合体各方应签订共同投标协议就中标项目向招标人承担连带责任
B.
联合体各方不能在同一招标项目中单独投标
C.
同-专业的单位组成联合体投标，其资质等级就低不就高
D.
资格预审后联合体增减、更换的成员与原成员具有同样的资质和能力。其投标有效
E.
所有的项目，只要投标人达成共同投标协议，都可以组成联合体投标
【单选题】—Do you know ________ man standing there? —I only know he's from ________ European country. [ ]
A.
a; an
B.
the; the
C.
the; a
D.
a; the
【多选题】(2013·甘肃诊断测试)Your cousin is said ________ a new computer program recently, but do you know when he will finish it?
A.
to design
B.
designing
C.
to have been designing
D.
to have designed
【单选题】— Do you know the tower _____ in the heart of the city? — You mean the one _____ from the Ming Dynasty?
A.
locating; dated
B.
being located; dating
C.
located; dating
D.
located; dated
相关题目：
【单选题】-- Do you know everyone from Class One? -- Er…, I know some of ______.
A.
they
B.
them
C.
their