血液pH到达何值时脑血管自动调节功能丧失
A.7.25
B.7.50
C.7.40
D.7.30
E.7.25
参考答案:A
— Where is the gift shop?
— ____. [ ]
A. Yes, there is
B. It's not far
C. It's over there
学习策略。