The company wants to _________ a school for the poor children.
A:put off
B:set up
C:call in
D:look after
在横线上填上>、<或=
看图,选词填空。
My sister isn't ____ her glasses.
She can't see the apples ____ the tree.
风的笔画顺序是____,共____画。
已知2cosA=1,则锐角A的度数是( )