题目:
A survey by the National Council of Churches showed that in 1986 there were 20,736 female ministers, almost 9 percent of the nation's clergy, twice as much as 1977.
选项:
A、twice as much as 1977twice as many as 1977
B、double what it was in 1977
C、double the figure for 1977
D、a number double that of 1977's
答案:
D