发动机启动后松开(),车辆运行。
参考答案:制动按钮
I walked up to the top of the hill with my feiend, we enjoyed a splendid view of the lake
A.which
B.where
C.who
D.that
音频素材包括()、MIDI等多种形式。
A、RAR
B、波表
C、RMVB
D、TIFF