The yield of natural gas from Norway’s Troll 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, anextraction rate that will allow at least
C. 2005 and then stabilizing at six billion cubic feet a day, withsuch an extraction rate at the least allowing
D. 2005, then stabilizing at six billion cubic feet a day, allowingsuch an extraction rate for at least
E. 2005, then stabilizing at six billion cubic feet a day, which willallow such an extraction rate for at least
答案为B，做对 但对anextraction rate that will allow at least 50 years’ production的意思不理解。。
allow : to assign as a share or suitable amount (as of time or money)
(see： http://www.merriam-webster.com/dictionary/allow)作者: m8888302 时间: 2010-8-16 15:19
TNANK YOU~作者: newca 时间: 2010-8-23 15:58
OG对D项的解释： D Stabilizing is an incorrect verb form; it should be an infinitive to parallel to increase; the subsequent phrase is awkward and confusing because it is not clear what noun allowing is supposed to modify.