Sandy likes the actors ______ are popular among teenagers.
A:who
B:which
C:whom
判断下列句子是否符合常识,用”正确”或”错误”表示。
A cow can give us milk.( )
弹簧测力计是测量力大小的工具,在生活中常常被叫做____。
测小车的平均速度.