题目

Nobody would stand out admitting the fact, for some reason,      they lost the game. A. that B. which    C. what D. why 答案：A 解析: “     they lost the game.”在句子中做the fact 的同位语从句,从句意思结构完整,结构完整。上课时，小明看到老师将一块磁铁吸在黑板上，是什么力使磁铁不掉下来呢？请你帮小明选出正确的答案（　　）A．黑板对磁铁的吸引力B．磁铁对黑板的吸引力C．黑板对磁铁的摩擦力D．磁铁的重力