具有降糖作用的清热药是（）
A.五味子
B.青皮
C.知母
D.苦参
E.桂枝
参考答案：C
I don't know when Martin _____ I'll meet him at the airport when he _____. [ ]
A. will return; return
B. returns; will return
C. returned; returned
D. will return; returns
windy The weather is windy.
____________________________________________
____________________________________________
____________________________________________
____________________________________________