配套习题-向量中的易混概念 -【青果学院】

本课配套习题挑战模式1/3

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单选题

难度系数：

1.

已知是平面向量，下列命题中真命题的个数是（）

①

②
③

④

A:
1

B:
2

C:
3

D:
4

提示1：PHA+5rOo5oSP5Yy65YiG5ZCR6YeP5LiO5ZCR6YeP55qE5qih5Lik5Liq5qaC5b+144CCPGJyPjwvcD4=
答案：QQ==
PHA+55Sx5bmz6Z2i5ZCR6YeP55qE5Z+656GA55+l6K+G5Y+v55+l4pGg4pGh4pGj5Z2H5LiN5q2j56Gu77yM5Y+q5pyJ4pGi5q2j56Gu77yM5pWF6YCJPGJyPjwvcD4=

本课配套习题挑战模式2/3

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单选题

难度系数：

2.下列命题正确的是( )

A: 单位向量都相等

B: 若与共线，与共线，则与共线

C: 若，则

D: 若与都是单位向量，则

提示1：5Y2V5L2N5ZCR6YeP5qih6ZW/6YO95Li6Me+8jOS9huaWueWQkeS4jeehruWumg==
提示2：5a+55LqOQu+8jOiLpeWQkemHj2LmmK/pm7blkJHph4/vvIzmraTml7boi6XlkJHph49h5LiO5ZCR6YePYuWFsee6v++8jOWQkemHj2LkuI7lkJHph49j5YWx57q/77yM5L2G5ZCR6YePYeS4juWQkemHj2PkuI3kuIDlrprlhbHnur8=
提示3：5a+55LqOQ++8jOiLpTxpbWcgd2lkdGg9MTAxIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzQ3LzQ5L3JCQUNKbFRabVJPd0RqbUdBQUFCNkJELXF5RTkzMy5wbmciPu+8jOWImeS4pOi+ueW5s+aWue+8jOWMlueugOWPr+W+lzxpbWcgd2lkdGg9NTIgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNDcvOEMvckJBQ0oxVFptUk9nNjRJSEFBQUJwZGZqSXRvMjMyLnBuZyI+
提示4：6IulPGltZyB3aWR0aD04IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzdCL0ZGL3JCQUNFMVRabVJQeTlZVXRBQUFCSDdZTWxrRTkwMS5wbmciPuS4jjxpbWcgd2lkdGg9OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC80Ny80OS9yQkFDSmxUWm1SUGhLNHE5QUFBQTltdm5jVjQ1MjEucG5nIj7pg73mmK/ljZXkvY3lkJHph4/vvIw8aW1nIHdpZHRoPTEyMSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC83Qi9GRi9yQkFDRTFUWm1SUEJEQmIxQUFBQ1U2UVFuaTg2MTcucG5nIj4=
答案：Qw==
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

本课配套习题挑战模式3/3

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单选题

难度系数：

3.

向量a、b都是非零向量，下列说法不正确的是（ )

A:
向量a与向量b同向，则向量a＋b与a的方向相同

B:
向量a与b同向，则向量a＋b与b的方向相同

C:
向量a与b反向，且|a|<|b|，则向量a＋b与a的方向相同

D:
向量a与b反向，且|a|>|b|，则向量a＋b与a的方向相同

提示1：PHA+6IulYe+8jGLlkIzlkJHvvIzliJlh77yLYuS4jmHlkIzlkJHvvIzkuZ/kuI5i5ZCM5ZCRPC9wPg==
提示2：PHA+6IulYeS4jmLlj43lkJHvvIznlLF8YXzkuI58YnznmoTlpKflsI/lj6/liKTmlq1D6aG555qE5q2j6K+vPC9wPg==
答案：Qw==
PHA+6IulYe+8jGLlkIzlkJHvvIzliJlh77yLYuS4jmHlkIzlkJHvvIzkuZ/kuI5i5ZCM5ZCR77yM5pWFQeOAgULmraPnoa7vvI7oi6Vh5LiOYuWPjeWQke+8jOeUsXxhfOS4jnxifOeahOWkp+Wwj+WPr+WIpOaWrUPplJnor6/vvI48L3A+

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本课配套习题挑战模式1/3

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本课配套习题挑战模式3/3

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