氟化锂的主要缺点是明显降低氧化铝在电解质中的()和()。
参考答案:溶解度;溶解速度
---I feel terrible ,but I’ve just broken your ashtray.
---_________, for I had meant to change it.
A.Go head
B.No problem
C.it’s nothing to get upset about
D.I’ll look into it immediately
小儿风寒咳嗽的首选方剂是()。
A.麻黄汤
B.三拗汤
C.杏苏散
D.小青龙汤
E.二陈汤