原题在这里： A survey by XXX showed that in 1986 there were 20,736 female ministers, almost 9 percent of YYY, twice as much as 1977. A: twice as much as 1977
B: twice as many as 1977
C: double what it was in 1977
D: double the figure for 1977
E: a number double that of 1977's
GMAC给的正确答案确实是D。
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