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题目内容
（河北科技师范学院-大学英语Ⅱ）
At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly ________ to another subject.（1.0分）1.0 分
A、
switched
B、
committed
C、
favored
D、
transmitted
A、
switched
B、
committed
C、
favored
D、
transmitted
参考答案
