不含药材原粉的口服制剂,每克含需氧菌总数不得超过()
A.100cfu
B.200cfu
C.500cfu
D.1000cfu
E.2000cfu
参考答案:D
已知一个直角三角形的两条边的长分别为3和5,则第三条边的长为______.
It rained heavily in the south, ________ serious flooding in several provinces.[ ]
A. caused
B. having caused
C. causing
D. to cause