驾驶机动车向左转弯、向左变更车道、准备超车、驶离停车地点或掉头时，提前开启左转向灯。
参考答案：对
The director couldn't figure out _______ made his assistant spend so much time in doing the survey. [ ]
A. what it was that
B. why it was that
C. how that was
D. what was it
按照《证券投资基金管理暂行办法》的规定，下列关于基金分红的说法正确的是（）。
A．基金分红分为现金分红和红利再投资两种形式
B．银行系统一般对货币基金默认为现金分红
C．银行系统一般对非货币基金默认为红利再投资
D．基金分红以现金形式分配至少90%的基金净收益
E．基金分红每年至少一次
