人参归脾丸可用于()
A.手足不温、脘腹冷痛
B.食少体倦、面色萎黄
C.脾不统血所致的便血、崩漏
D.心脾两虚、气血不足所致的心悸、失眠健忘
参考答案:B, C, D
News came __________ the H1N1 virus may spread more quickly than was thought.
A.when
B.where
C.which
D.that
若关系R和S的关系代数操作的结果如下,这是执行了