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题目内容
（河北农业大学大学英语Ⅳ）
【单选题】Before going further, let me_______an important point about the organizations that are involved in this research program.
A、
clear up
B、
look down upon
C、
cater to
D、
run for
A、
clear up
B、
look down upon
C、
cater to
D、
run for
参考答案
