高钾血症对心脏的影响:
A. 兴奋性先升高后降低
B. 自律性降低
C. 传导性降低
D. 收缩性减弱
高钾血症可引起
A. 代谢性碱中毒
B. 代谢性酸中毒
C. 反常性酸性尿
D. 反常性碱性尿
Fill in the blank with a proper comparative construction.1. Tom is ___________ his wife is cunning. (honest)
1. The reason for his success is _____________ he worked hard.
A. why
B. that
C. because
D. for