题目

I grew up in a community called Estepona. I was 16 when one morning, Dad told me I could drive him into a   41   village called Mijas, on condition that I took the car in to be   42  at a nearby garage. I readily accepted. I drove Dad into Mijas, and   43  to pick him up at 4 pm, then dropped off the car at the   44 . With several hours to spare, I went to a theater.   45  ,when the last movie finished, it was six. I was two hours late!      I knew Dad would be angry if he   46   I'd been watching movies. So I decided not to tell him the truth. When I  47   t海水是一个巨大的化学资源库,下列有关海水综合利用的说法正确的是（   ） A．海水中含有钾元素,只需经过物理变化就可以得到钾单质 B．海水蒸发制粗盐的过程中只发生了化学变化 C．利用潮沙发电是将化学能转化为电能 D．从海水中可以得到NaCI,电解熔融NaCI可制备金属钠