—We are afraid of the teachers______ strict with students—So am I.
A:that is
B:whom are
C:who is
D:that are
如图甲所示,电流恒定的通电直导线MN,垂直平放在两条相互平行的水平光滑长导轨上电流方向由M指向N,在两轨间存在着竖直磁场,取垂直纸面向里的方向为磁感应强度的正方向,当t=0时导线恰好静止,若B按如图乙所示的余弦规律变化,下列说法正确的是( )
Lily ____ speak Chinese to us, ____.
1在百位上比在百分位上大____。
下列关于我国国情说法正确的是( )