在Excel操作中,某公式中引用了一组单元格,它们是(C3:D7,A1:F1),该公式引用的单元格总数为()。
A、4
B、12
C、16
D、22
参考答案:C
---- Do you know our town at all?
---- No, this ______ the first time I ______ here.
A.was; has come
B.is; come
C.is; had come
D.is; have come