皮皮学,免费搜题
登录
搜题
【判断题】
一方面,社会主义民主是社会主义法治的基础,另一方面,社会主义法治是社会主义民主的保障。( )
A.
正确
B.
错误
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】One of the few things you _____ say about English people with certainty is that they talk a lot about the weather. [     ]
A.
can
B.
must
C.
should
D.
need
【单选题】One of the few things you ______say about English people with certainty is that they talk a lot about the weather. [     ]
A.
need
B.
must
C.
can
D.
should
【简答题】把正方形ABCD沿其对角线AC折成直二面角D-AC-B后,连接BD,得到如图所示的几何体,已知点O、E、F分别为线段AC、AD、BC的中点。 (1)求证:AB∥平面EOF; (2)求二面角E-OF-B的大小。
【简答题】如图所示,在正方体ABCD-A 1 B 1 C 1 D 1 中,求异面直线A 1 B 与AC 1 所成的角.
【简答题】在如图所示的几何体中,四边形ABCD为正方形, 为直角三角形, ,且 . (1)证明:平面 平面 ; (2)若AB=2AE,求异面直线BE与AC所成角的余弦值.
【单选题】如图所示,长方体ABCD-A1B1C1D1中,底面A1B1C1D1是边长为1的正方形,高CC1= ,则直线AC1与底面ABCD所成的角的大小是( )
A.
30°
B.
45°
C.
60°
D.
90°
【简答题】把正方形ABCD沿其对角线AC折成直二面角D-AC-B后,连接BD,得到如图所示的几何体,已知点D、E、F分别为线段AC、AD、BC的中点, (1)求证:AB∥平面EOF; (2)求二面角E-OF-B的大小.
【单选题】The author states that one important reason that we do not talk much about poverty is that ______.
A.
no one knows what to do about it
B.
poverty really is lower than in the past
C.
no one has been left out of the current boom
D.
the president is not concerned about the poor
【简答题】One of the few things you __   _ say about English people with certainty is that they talk a lot about the weather. A.need B.must C.should D.can
【简答题】如图所示,在正方体ABCD-A 1 B 1 C 1 D 1 中,AB=a,E为棱A 1 D 1 中点. (I)求二面角E-AC-B的正切值; (II)求直线A 1 C 1 到平面EAC的距离.
相关题目: