GWD 24-17

fengkunliu

24-17 The yield of natural gas from Norway’s Troil gas field is expected to increase annually until the year 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for 50 years’ production.

A) 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for

B) 2005 and then to stabilize at six billion cubic feet a day, an extraction rate that will allow at least

C) 2005 and then stabilizing at six billion cubic feet a day, with such an extraction rate at the least allowing

D) 2005, then stabilizing at six billion cubic feet a day, allowing such an extraction rate for at least

E) 2005, then stabilizing at six billion cubic feet a day, which will allow such an extraction rate for at least

答案选B，an extraction rate that....是作同位语成分吗？修饰的前面整句话？

carolhide

对的

gonghao

six billion cubic feet a day, an extraction rate that will allow at least