答案:C
—How soon _____ all the work _____?
—In a week. [ ]
A. will...finish
B. is...going to finish
C. will...be finished
D. are...going to be finished
把一个圆柱体侧面展开,量得展开后的长方形的长是9.42厘米,这个圆柱体的底面积是______.