— What time do you usually _________ every day?
—At seven o' clock. And then I will prepare breakfast for my son.
A:set up
B:take up
C:get up
已知命题p:∀x∈R,2x2+2x+12<0;命题q:∃x∈R,sinx-cosx=2.则下列判断正确的是 ( )
肝脏分泌的胆汁和和胰腺分泌的胰液要通过导管流入十二指肠.(判断对错)
下列说法:
①解分式方程一定会产生增根;
②方程x-2x2-4x+4=0的根为2;
③方程12x12x-4的最简公分母为2x(2x﹣4);
④x+1x-1=1+1x-1是分式方程.
其中正确的个数是( )