Last summer I took a course on ________ poisonous gases.[ ]

A．how to deal with  

B．what to deal with

C．how to be dealt with  

D．what to be dealt with

计算机系统软件中的汇编程序是一种

A．汇编语言程序

B．编译程序

C．编辑程序

D．将汇编语言程序转换为目标程序的程序