肌肉收缩的形式有（）
A.单收缩
B.等长收缩
C.完全强直收缩
D.等张收缩
E.不完全强直收缩
参考答案：A, B, C, D, E
It was not until I came here _____I realized this place was famous for not only its beauty but also its weather.
A．who
B．that
C．where
D．before
TFT（Thin Film Transistor）中文准确解释是（）。
A、向列型
B、超扭曲向列型
C、双层超扭曲向列型
D、薄膜晶体管型
