颅内压是由下列哪些因素调节()。
A.脑血流,脑组织及静脉压
B.脑脊液压力
C.脑灌注压
D.脑脊液、脑血流及脑组织
E.以上均不正确
参考答案:D
He________live in the south, so it is hard for him to________the climate here.[ ]
A. was used to; be used to
B. used to; used to
C. was used to; get used to
D. used to; get used to
下列各组物质中,能用银氨溶液进行鉴别的是()。
A.乙醇和乙醚
B.乙醛和丙酮
C.乙烯和乙烷
D.乙酸和甲酸