He＿＿＿＿＿＿rather stay at home than go to the cinema with you.

A．should

B．might

C．would

D．had better

如右图所以，当开关闭合后，下列说法中正确的是（    ）

A．螺线管的下端是S极

B．小磁针将转动，静止后N极向下

C．小磁针将转动，静止后S极向下

D．当滑动变阻器的划片向右滑动时，螺线管的磁性增强