【单选题】【消耗次数：1】
You can take any apple ____________ you like.
①
that
②
which
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相关题目
【单选题】
You can take as many as you like because they are free of ____ .?
①
fare ?
②
charge ?
③
money ?
④
pay?
【单选题】
You can take as many as you like because these handouts are free of ____.
①
fare
②
charge
③
money
④
pay
【单选题】
-May I help you?-___. Do you have any apple juice?
①
Sure
②
Thank you
③
No, thanks
④
I don’t think so
【单选题】
A: Must I take a train? B: No, you [填空]. You can take a plane.
①
dont
②
must not
③
dont have to
④
can not
【单选题】
Must I take a taxi?No, you _______. You can take my car.
①
had better to
②
don’t
③
must not
④
don’t have to
【单选题】
I’d like to take you to the coffee house on the corner.
①
Thank you. You shouldn’t’ do that
②
Thanks, I’d like to go with you
③
No, you can’t say so
④
No, no, You can’t do that
【单选题】
It is better for you to be _____ about its consequences before you take any action.
①
positive
②
absolute
③
critical
④
favorite
【单选题】
Don’t take any action until you are fully _____ with the situation there.
①
consented
②
content
③
obvious
④
acquainted
【单选题】
You________return the book now. You can keep it till next week if you like.
①
cant
②
mustnt
③
neednt
④
may not
随机题目
【简答题】
计算机网络的主要功能是[填空1]和网络通信。
【简答题】
求解线性方程组<img class="jc-formula" data-tex="\begin{ cases } { x }_{ 1 }+{ x }_{ 2 }+{ x }_{ 3 }+{ x }_{ 4 }=1 \\ 3{ x }_{ 1 }+2{ x }_{ 2 }+{ x }_{ 3 }+{ x }_{ 4 }=-3 \\ \quad \quad \quad \quad \quad { x }_{ 2 }+3{ x }_{ 3 }+2{ x }_{ 4 }=5 \\ 5{ x }_{ 1 }+4{ x }_{ 2 }+3{ x }_{ 3 }+3{ x }_{ 4 }=-1 \end{ cases }" src="https://huaweicloudobs.ahjxjy.cn/F8FB85A63DD75F17C75DBA324F3C9E05.png" style="vertical-align: middle;"/>
【简答题】
设<img class="jc-formula" data-tex="AB=A+2B,B=\left( \begin{ matrix } 1 1 0 \\ -1 2 0 \\ 0 0 -1 \end{ matrix } \right) " src="https://huaweicloudobs.ahjxjy.cn/D2F461A75F7A9F59691FA3E4BBE8CA48.png" style="vertical-align: middle;"/>，求<img class="jc-formula" data-tex="A" src="https://huaweicloudobs.ahjxjy.cn/53F870B8D448BB3DB08A67264B6329F9.png" style="vertical-align: middle;"/>
【简答题】
求如下方程组的全部解<img class="jc-formula" data-tex="\begin{ cases } { x }_{ 1 }+5{ x }_{ 2 }-{ x }_{ 3 }-{ x }_{ 4 }=-1 \\ x_{ 1 }-2{ x }_{ 2 }+{ x }_{ 3 }+3{ x }_{ 4 }=3 \\ 3{ x }_{ 1 }+8{ x }_{ 2 }-{ x }_{ 3 }+{ x }_{ 4 }=1 \\ { x }_{ 1 }-9{ x }_{ 2 }+3{ x }_{ 3 }+7{ x }_{ 4 }=7 \end{ cases }" src="https://huaweicloudobs.ahjxjy.cn/A62CC30A0D3B926B3452EB7F99DCE879.png" style="vertical-align: middle;"/>.
【简答题】
解线性方程组<img class="jc-formula" data-tex="\begin{ cases } x_{ 1 }+3{ x }_{ 2 }-{ 2x }_{ 3 }+{ x }_{ 4 }=1 \\ 2{ x }_{ 1 }+5{ x }_{ 2 }-3{ x }_{ 3 }+{ x }_{ 4 }=3 \\ -3{ x }_{ 1 }+4{ x }_{ 2 }+8{ x }_{ 3 }-2{ x }_{ 4 }=4 \\ 6{ x }_{ 1 }-{ x }_{ 2 }-6{ x }_{ 3 }+4{ x }_{ 4 }=2 \end{ cases }" src="https://huaweicloudobs.ahjxjy.cn/9D3F9AFD766D2E70840A2BC2711DEC75.png" style="vertical-align: middle;"/>.
【简答题】
把下列矩阵化为标准形式:<img class="jc-formula" data-tex="A=\left( 2\quad 1\quad 2\quad 3\\ 4\quad 1\quad 3\quad 5\\ 2\quad 0\quad 1\quad 2 \right) " src="https://huaweicloudobs.ahjxjy.cn/59CD075496E307B70F4AA0BC88F37A1A.png" style="vertical-align: middle;"/>.
【简答题】
设<img class="jc-formula" data-tex="A,B" src="https://huaweicloudobs.ahjxjy.cn/34D561CE3766023EB67E597F39453619.png" style="vertical-align: middle;"/>为<img class="jc-formula" data-tex="n" src="https://huaweicloudobs.ahjxjy.cn/6593C84B94B8062EB35F270378D7D9B6.png" style="vertical-align: middle;"/>阶矩阵，且<img class="jc-formula" data-tex="AB=A+2B" src="https://huaweicloudobs.ahjxjy.cn/719175434B2D8254A7FA73E9CEB756FD.png" style="vertical-align: middle;"/>,证明<img class="jc-formula" data-tex="B-E" src="https://huaweicloudobs.ahjxjy.cn/49C94419A8FF0A690FA5A4A12F38583C.png" style="vertical-align: middle;"/>可逆。
【简答题】
设实对称矩阵<img class="jc-formula" data-tex="A" src="https://huaweicloudobs.ahjxjy.cn/53F870B8D448BB3DB08A67264B6329F9.png" style="vertical-align: middle;"/>与<img class="jc-formula" data-tex="B=\left( 1\\ \quad -1\quad \quad \\ \quad \quad \quad \quad 2 \right) " src="https://huaweicloudobs.ahjxjy.cn/F83DB5DDA8A8CECCC73531E5092F8FAA.png" style="vertical-align: middle;"/>相似，则<img class="jc-formula" data-tex="R(A)=" src="https://huaweicloudobs.ahjxjy.cn/EA3EEAC4F5D815FE2E7F3ED1B8EDC350.png" style="vertical-align: middle;"/>[填空1].
【简答题】
设实对称矩阵A与B=<img class="jc-formula" data-tex="\left( 1\\ \quad \quad -1\quad \quad \\ \quad \quad \quad \quad \quad 2 \right) " src="https://huaweicloudobs.ahjxjy.cn/F809C30E3DE9F96F1307B7C55D01D18F.png" style="vertical-align: middle;"/>相似，则R(A+E)[填空1].
【简答题】
资本资产定价模型的包括哪些假设条件？