下列防晒行为不正确的是（）。
A.涂抹一些防晒霜
B.向皮肤洒水
C.使用太阳伞
D.晒后使用涂抹一些清凉油
参考答案：B
It was quite a serious accident, _____ caused by careless driving.
A．which I think was
B．I think which was
C．which I think it was
D．I think which it was
酚系数
