属于高血压性脑出血的手术适应证的是（）
A.脑叶血肿大于30ml
B.脑桥出血
C.年龄80岁
D.基底动脉破裂
E.生命体征不稳定
参考答案：A
—_______ do you improve your English?
—I improve it _______ reading aloud.
A．How; with
B．How; by
C．What; with
D．What; by
— Can you imagine what is Jack doing now? He is playing football outside while everyone else is busy in class!
— He his homework, I think.
A．must have finished
B．must finish
C．can’t have finished
D．mustn’t have finished
