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【单选题】
矩阵,若齐次线性方程组 只有零解,则对任意m维非零列向量b,非齐次线性方程组 ( )A.
必有唯一解
B.
必无解
C.
必有无穷多解
D.
可能有解,也可能无解
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【单选题】Chris: I think we might get a good pay rise this year. Sam: ______ Tom: I think it' s on the cards. Helen: I think it' s a sale bet. The company' s made a big profit this year. Kate: You're right, but...
A.
That is OK.
B.
That doesn't make sense!
C.
That would be terrible.
D.
That'll be the day!
【简答题】My name is Sam. I’m tall. I have a round face and big eyes. I have a good friend. His name is Tom. He is short. He has red hair and big eyes. His favorite actor is Jackie Chan, and he thinks Jackie Ch...
【单选题】在环境影响报告书编制过程中开展公众参与的法律依据不包括
A.
《行政许可法》
B.
《环境影响评价法》
C.
《规划环境影响评价条例》
D.
《建设项目环境保护管理条例》
【单选题】在环境影响报告书编制过程中开展公众参与的法律依据不包括（ ）
A.
《建设项目环境保护管理条例》
B.
《行政许可法》
C.
《规划环境影响评价条例》
D.
《环境影响评价法》
【单选题】—The twins are quite different. Sam is wild while Tom is quiet. —Yeah, Sam is ___________ than Tom.
A.
less outgoing
B.
more outgoing
C.
much taller
D.
more serious
【单选题】—Tom, do you know if Sam ________to my party next week? —I think she will come if she________ free.
A.
comes;will be
B.
will come;is
C.
comes;is
D.
will come;will be
【简答题】Three boys, Tom, Sam and Jim bought seen apples. Tom wanted the half (一半). Sam wanted one-third (三分之一)，and Jim wanted one-ninth (九分之一)? But they didn’t know how to do. Just at that time,a little ...
【单选题】在环境影响报告书编制过程中开展公众参与的法律依据不包括（ ）
A.
《环境影响评价法》
B.
《规划环境影响评价条例》
C.
《行政许可法》
D.
《建设项目环境保护管理条例》
【单选题】________ room is big and bright. They like it very much. [ ]
A.
Tom and Sam
B.
Tom's and Sam
C.
Tom and Sam's
D.
Tom's and Sam's
【单选题】Tom's room is bigger than ______. [ ]
A.
Sam and Bill
B.
Sam's and Bill's
C.
Sam's and Bill
D.
Sam and Bill's
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