遇行人正在通过人行横道时，要停车让行人先行。
参考答案：对
.
The report shows that global climate change__________the drought in Southwest of China but ______ we need to make greater efforts.
A．accounts for; that
B．due to; whether
C．brings in; what
D．comes up; why
下列化学符号表示同一种元素的是 ( )
①X ②X ③ ④
A．①③
B．②③
C．①②③
D．全部
X ②
X ③ 
④