生物战剂主要有六大类：（）、（）、（）、（）、（）、（）。
参考答案：细菌；病毒；立克次体；毒素；真菌；衣原体
The teacher suggested that her students__________experiences with ESP.
A．write a composition on their
B．to write composition about the
C．wrote some compositions of his or her
D．had written any compositions for his
沃家庭B套餐采用“2部宽带＋1部固定电话＋M部2G手机+N部3G手机”形式。
