机动车在路边起步后应尽快提速，并向左迅速转向驶入正常行驶道路。
参考答案：错
As a businessman he was a success, but as a husband he was ______failure, so their marriage ended in______ failure.
A．/; /
B．/; a
C．a; a
D．a; /
A．mgtgθ
B．mgsinθ
C．μmg
D．μmg
mgtgθ
mgsinθ