我国太阳能资源年太阳辐射总量5000-5850MJ/m2,相当于日辐射量3.8~4.5KWh/m2的地区,属于()类地区。
A.I
B.II
C.III
D.IV
参考答案:C
—Do you know our school at all?
—No, this is the first time I ________ here.
A.was
B.have been
C.came
D.am coming