健康人在精神紧张时常有明显的出汗现象,说明[ ]
A.此时人体的内环境稳态失调
B.此时人体激素分泌没有变化
C.汗腺的分泌活动受神经活动影响
D.这种情况下出汗不影响人体散热
答案:C
We have two rooms_________, but I can't decide _________. [ ]
A. to live; to choose which one
B. lived ; choose which one
C. to live in ; which one to choose
D. live ; which one
以下数据属于字体高度尺寸系列的有()。
A.1.5
B.2.5
C.3.5
D.5