华中农业大学
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- 函数展开成的幂级数是. ( )
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- 一力场由沿轴正方向的常力构成, 当一质量为的质点沿圆周按逆时针方向经过位于第一象限的圆弧时,则场力所作的功为. ( )
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- 设是由直线,及所围成的闭区域, 则二重积分
的值为 .( ) - https://image.zhihuishu.com/zhs/doctrans/docx2html/202010/8d5c281e183d46dc8a88fd5f6461b040.png
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- 直线的参数方程为 ( )
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- 可使成立的函数为 ( )
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- 已知向量,,,则向量在轴上的分向量是 ( )
- 已给正六边形(字母顺序按逆时针方向), 记,,则用向量,表示向量等于 ( )
- 过空间点向平面作垂线, 垂足的坐标是 ( )
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- 函数在点处存在偏导数,是在该点可微的 ( )
- 过空间点向平面作垂线, 垂足的坐标是 ( )
- 平面的特殊位置为 ( )
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- 方程表示的图形为 )( )
- 过点且平行于直线
的直线方程为 ( ) - 设二元函数, 则等于 ( )
- 过空间点向轴作垂线, 垂足的坐标是 ( )
A:错 B:对
答案:
A:对 B:错
答案:
A:对 B:错
答案:
A:对 B:错
答案:对
A:对 B:错
答案:
A:对 B:错
答案:
A:对 B:错
答案:
A:对 B:错
答案:对
A:错 B:对
答案:
A:对 B:错
A:对 B:错
A:错 B:对
A:错 B:对
A:对 B:错
A:对 B:错
A: B: C: D:
A: B: C: D:
A: B: C: D:不确定
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A: B: C: D:
A:既非充分又非必要条件 B:充分条件 C:必要条件 D:充要条件
A:必要条件 B:充分条件 C:既不必要也不充分条件 D:充要条件
A:单叶双曲面 B:椭圆抛物面 C:双叶双曲面 D:椭圆双曲面
A: B: C: D:
A:必要条件 B:既不必要也不充分条件 C:充要条件 D:充分条件
A: B: C: D:
A:平行于轴 B:平行于轴 C:平行于轴 D:垂直于轴
A:椭圆 B:母线平行于轴的椭圆柱面 C:母线平行于轴的双曲柱面 D:旋转椭球面
A:双曲抛物面 B:椭球面 C:椭圆柱面 D:双曲柱面
A: B: C: D:
A: B: C: D:
A: B: C: D:
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