植物人只有心跳、呼吸等基本生命活动,且不能自主活动、没有意识,其神经系统可能没有受到损伤的部位是( )
A:大脑
B:小脑
C:脑干
D:脊髓
— Who's that man in our classroom? It ________ be Mr. Brown. He is much taller. — You mean the man in white? He is an exchange student from England.
当a为( )值时,不等式a(x﹣3)<2(a﹣x)的解集为x<4.