20、The light will be thrown ______ the cause of cancer by research that is now in progress.
A. to B. upon C. in D. for
科目:高中英语 来源: 题型:单选题
科目:高中英语 来源: 题型:
The light will be thrown ______ the cause of cancer by research that is now in progress.
A. to B. upon C. in D. for
科目:高中英语 来源: 题型:
The light will be thrown ______ the cause of cancer by research that is now in progress.
A. to B. upon C. in D. for
科目:高中英语 来源: 题型:
The light will be thrown ______ the cause of cancer by research that is now in progress.
A. to B. upon C. in D. for
科目:高中英语 来源: 题型:
The light will be thrown ______ the cause of cancer by research that is now in progress.
A.to B.upon C.in D.for
科目:高中英语 来源:黑龙江省鹤岗一中2009-2010学年高二下学期期末考试试题(英语) 题型:单选题
The light will be thrown ______ the cause of cancer by research that is now in progress.
| A.to | B.upon | C.in | D.for |
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