义务献血者每次献血量一般为200毫升.照这样计算,星期天某单位共有150人参加义务献血,大约共献血多少升?
200×150=30000(毫升)=30升
答:大约共献血30升.
He looks thin, but he is _____ than before. [ ]
A. thinner
B. more thin
C. more strong
D. stronger
患者,女,54岁。面色白,时自汗出,恶风,经常患感冒,脉浮无力。用药应首选的药物是()
A.党参
B.麻黄根
C.浮小麦
D.生黄芪
E.太子参