如图所示，若要使滑动变阻器的滑片P向C端滑动时小灯泡变亮，应将滑动变阻器的____或____两接线柱接在电路的M、N两端。
AC；BC
— Look! The people are fighting over there. Let's go to stop them.
— Can't you see? Many people are watching. They _____ a movie. [ ]
A. have made
B. may be making
C. will make
D. must be making
烷化剂的主要远期毒性除外（）。
A.胎儿畸形
B.心脏毒性
C.免疫功能抑制
D.不育症
E.肿瘤（包括白血病）
