The doctor and writer _________ in Harbin last year.[ ]
A. is
B. are
C. was
D. were
答案:C
Dianiel Jones wrote a number of works on English().
A. grammar
B. phonetics
C. vocabulary
D. culture
SFZ-10000/110表示三相自然循环风冷有载调压,额定容量为10000kVA,高压绕组额定电压()kV电力变压器。
A、500
B、330
C、220
D、110