-- I happened to notice Bob’s father quarrelling with the teacher in defense of his son.

-- No wonder Bob always performs poorly in class. It’s really “________”.

A．Love me, love my dog

B．Like father, like son

C．Birds of a feather flock together

D．A busy mother makes a lazy daughter

硬脑膜外血肿意识障碍表现为（）

A.有中间清醒期

B.无中间清醒期

C.持续昏迷

D.null

E.null