已知集合P={平面直角坐标系下直线的倾斜角},Q={两非零向量的夹角}

已知集合P={平面直角坐标系下直线的倾斜角},Q={两非零向量的夹角},R={二面角的大小},S={平面上两直线所成的角},则

A.PQ=RS                                B.SPQ=R

C.S=PQ=R                                  D.SPQR

答案

B

解析

:由P=[0,π),Q=[0,π],R=[0,π],S=[0,],易知B成立.

相关题目

 实验室中某些气体的制取、收集及尾气处理装置如图所示(
 实验室中某些气体的制取、收集及尾气处理装置如图所示(省略了净化装置)。仅用此装置和表中提供的物质完成相关实验,最合理的选项是( ) 选项a中
148. My father never _____ the idea that money brings happiness.   A. relates t
148. My father never _____ the idea that money brings happiness.   A. relates to              B. subscribes to             C. caters to            D. contributes to
Children under 10 are not permitted _____ the film.     A.to see      
Children under 10 are not permitted _____ the film.     A.to see        B. seeing      C. saw       D. watched
选出下面文句中对加点的词语解释不恰当的一项:(  ) A. 今
选出下面文句中对加点的词语解释不恰当的一项:(  ) A. 今某之业所就孰与仲多?                      与……相比,谁更…… B.镇国家,
用括号内所给动词的适当形式填空,必要时可加助动词或情
用括号内所给动词的适当形式填空,必要时可加助动词或情态动词。       An old woman opens her windows and looks out.What a sunny day! But she is surprised there is a ma
The teacher is very strict           his students. A.with      
The teacher is very strict           his students. A.with                B.in                C.for           D.to
     已知函数f(x)=lnx+      (Ⅰ)求函数f(x)的单
     已知函数f(x)=lnx+      (Ⅰ)求函数f(x)的单调区间;     (Ⅱ)设mR,对任意的a∈(-l,1),总存在xo∈[1,e],使得不等式ma - (xo)<
Someone had taken the ____ diamond and put a faulty one in its place.     A.
Someone had taken the ____ diamond and put a faulty one in its place.     A. real     B. pure      C. right     D. exact

最新题目