能活血兼止痛的药物是川芎、郁金、乳香、红花、莪术。
参考答案：对
— _______________ is your school bag?
— It's black and white.[ ]
A. What
B. Where
C. What colour
组成低聚糖的单糖分子数为（）
A.1~2个
B.3～8个
C.11~15个
D.16~20个
E.20~25个
