药品本身带很多菌，影响验证，怎么办？
参考答案：
样品放到很烫的稀释剂里，若无效，采取高压湿热灭菌。
He cares so little about his meals that _____ will do so long as it fills his stomach.
A everything B something C anything D nothing
具有趋化作用的炎症介质是
A．组胺
B．缓激肽
C．氧自由基
D．C5a
