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问题
单项选择题 A1型题
目前治疗原发性肝癌首选的方法是（）
A.手术治疗
B.散射治疗
C.中医治疗
D.化学治疗
E.免疫治疗
答案
参考答案：
A
填空题
缩短（）可以预防滤饼粘吸卡钻。
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选择题
When I was only a child, my mother said that the earth ________ bigger than the moon.
A. was
B. were
C. had been
D. is
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