一充血性心力衰竭患儿,长期服用利尿剂,近来精神萎靡,乏力,心音低钝,心律失常,考虑为()。
A.低血钾
B.高血钾
C.低血钠
D.低血钙
E.低血磷
参考答案:A
In that school, English is compulsory for all students, but French and Russian are ________. [ ]
A. special
B. regional
C. optional
D. original
2007年我国参加最低生活保障人数是2001的()。
A.3.96倍
B.3.73倍
C.3.68倍
D.3.41倍