• 2021-04-14 问题

    G97 S_;其中S后面的数值表示( )

    G97 S_;其中S后面的数值表示( )

  • 2021-04-14 问题

    2 s_ _ _ _ _h ____

    2 s_ _ _ _ _h ____

  • 2022-06-06 问题

    分开 n. s_ _ _ _ _ _ _ _ _

    分开 n. s_ _ _ _ _ _ _ _ _

  • 2022-06-29 问题

    /seɪl/ s_ _l

    /seɪl/ s_ _l

  • 2022-06-01 问题

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

  • 2022-06-03 问题

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

  • 2022-06-15 问题

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

  • 2022-06-18 问题

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

  • 2022-06-12 问题

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

    设以下三个向量组\(S_{1}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3} \},\)\(S_{2}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{4}\},\)\(S_{3}\)=\(\{\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}\} \)的秩依次为\(3,3,4,\)则\(S={\alpha_{1},\alpha_{2},\alpha_{3},\alpha_{5}-\alpha_{4} }\)的秩为______ 。

  • 2021-04-14 问题

    图示两杆$AB$与$CD$的$EI$、$l$相等,但$A$端的劲度系数(即转动刚度)$S_{AB}$大于$C$端的劲度系数$S_{CD}$。

    图示两杆$AB$与$CD$的$EI$、$l$相等,但$A$端的劲度系数(即转动刚度)$S_{AB}$大于$C$端的劲度系数$S_{CD}$。

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