1) ______ the theory of language underlying the natural approach
2) ______ the theory of learning underlying the natural approach
3) ______ one of the objectives of the natural approach
4) ______ one of the techniques of the natural approach
5) ______ one of the main features of the natural approach
a) problem solving activities
b) to help the students to develop basic communication skills
c) class time being devoted primarily to providing input for acquisition
d) communications as the primary function of language
e) the monitor model

可以被多个进程在任意时刻共享的代码必须是( )。

A．顺序代码

B．机器语言代码

C．不能自身修改的代码

D．无转移指令代码