慢性肺心病急性加重期使用利尿剂,可能引起
A.低钾低氯性碱中毒
B.代谢性酸中毒
C.呼吸性酸中毒合并代谢性酸中毒
D.呼吸性碱中毒合并代谢性酸中毒
E.稀释性低钠血症
参考答案:A
Don't be too hard ______ the boy; he didn't mean it. [ ]
A. at; doing
B. on; to do
C. for; doing
D. for; to do
远处物体平行光线聚焦于视网膜之前是()
A.近视
B.远视
C.老视
D.散光
E.斜视