加标点。
□你为什么要这样做呢□教育家又问□
“?”。
The people there did not allow them to set up a factory _____ pollute the water in the river.
A.not so as to
B.so as not to
C.in order to
D.so that
没有了()计算机系统就启动不起来了。
A.编译器
B.DBMS
C.OS
D.浏览器