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问题
单项选择题 B型题
土茯苓善治()
A.梅毒
B.肠痈腹痛
C.感冒发热
D.热毒血痢
E.毒蛇咬伤
答案
参考答案:
A
选择题
He ____ to come today, but he didn't keep his ____.
A. promise; promise
B. promised; promised
C. has promised; promise
D. promised; promise
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选择题
男性体内用以繁衍后代的生殖细胞是( )
A.精子
B.卵细胞
C.体细胞
D.受精卵
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