A:
B:
C:
D:
Many students ______ chances to show themselves in class because the class size is too big.
如图所示,在△ABC中,∠CAB=70°,将△ABC绕点A旋转到△A′B′C′的位置,使得C′A⊥AB,则∠BAB′=( )
下列句子没有语病的一项是( )