The risk from bird flu is generally low to most people _____
The risk from bird flu is generally low to most people _______ the viruses occur mainly among birds and do not usually infect humans.
A. in which B from which C. to which D. in that
应该选A,还是D, 为什么
A. in which B from which C. to which D. in that
应该选A,还是D, 为什么
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1年前1个回答
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