下列哪种气体不能引起温室效应
A.CO
B.CO2
C.CH4
D.N2O
E.含氯氟烃
参考答案:A
Reading can give students a chance to _______ their interests.
A.explain
B.explode
C.explore
D.export
一位儿童的智力年龄是10岁,实足年龄是8岁,他的比率智商是( )
A.80
B.100
C.120
D.125