202 km Shanghai—Hangzhou high-speed railway, with deign speed of 350 km per hour, began its operation on Oct 26,2010.
A. The; a
B. The; the
C. A; a
D. A; the
网友回答
(答案→)A. The; a
B. The; the
C. A; a
D. A; the
解析：考察冠词。前文202 km Shanghai—Hangzhou high-speed是railway的定语，为特指某条铁路，故用定冠词。下文泛指任何一个350千米每小时的标记，故用不定冠词。选A。