高血压的治疗措施应该是综合性的,以下各项中属于高血压的非药物治疗的是()
A.补钙
B.科学饮食
C.气功
D.运动
E.减肥
参考答案:A, B, C, D, E
He dressed himself quickly, _____ his schoolbag and went to school.
A.carrying
B.to carry
C.carried
D.carries
某温度下重水(D2O)的离子积常数为1.6×10-15,用定义pH一样来规定pD=-l g{c(D+)},则该温度下,下列叙述正确的是[ ]
A.纯净的重水(D2O)中,pD=7
B.1 L溶解有0.01 mol DCl的重水溶液,其pD=12.0
C.纯净的重水中,c(D+)=c(OD-)
D.1 L溶解有0.01 mol NaOD的重水溶液,其pD=12.0