()科和()科中一些种的子房由二心皮组成,而且子房四深裂,常见药用植物有()、()、()。
参考答案:唇形、紫草、薄荷、黄芩、夏枯草等
— Every means _____ been tried so far to deal with the oil spill (漏) in the Gulf of Mexico.
— But few _____ effect.
[ ]
A. have, take
B. had, takes
C. has, takes
D. has, take
如何评估国际市场机会?