法国波尔多所产的上佳年份的红酒，需陈酿（）年以上才能成熟。
A.6
B.10
C.12
D.20
参考答案：B
The climate conference was attended by 11,000 people, _____ it the largest UN gathering ever held.[ ]
A. making
B. to make
C. made
D. to be making
限速下堵水管柱是为了防止中途坐封、顿钻。
