9、The number of women dying from breast cancer has fallen to its lowest level ____ records began in 1971.
A.when B.before C.since D.after
科目:高中英语 来源: 题型:单选题
科目:高中英语 来源: 题型:
The number of women dying from breast cancer has fallen to its lowest level ____ records began in 1971.
A.when B.before C.since D.after
科目:高中英语 来源: 题型:
The number of women dying from breast cancer has fallen to its lowest level ____ records began in 1971.
A.when B.before C.since D.after
科目:高中英语 来源:山东省莘县实验高中2010届高考模拟考试英语试题(五) 题型:单选题
The number of women dying from breast cancer has fallen to its lowest level ____ records began in 1971.
| A.when | B.before | C.since | D.after |
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