驾驶机动车掉头、转弯、下陡坡时的最高速度不能超过每小时40公里。
参考答案：错
Initially acting as a sports announcer in the 1930's, Ronald Reagan entered national politics when he campaigned on TV for Barry Goldwater in 1964 president race.
内含报酬率就是在净现值等于0时的折现率，它反映了股票投资的内在收益情况。( )
