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【单选题】
翻瓣术手术纵行切口应位于A.
龈乳头中央
B.
颊面中央
C.
舌腭侧中央
D.
颊面轴角处
E.
任意位置均可
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反馈参考答案：
举一反三
【单选题】Mr. Smith ______working till he was seventy years old.
A.
kept up
B.
kept on
C.
kept to
D.
kept out
【单选题】The price of goods kept ______. We had to cut the expenses in order to meet our daily needs.
A.
standing out
B.
going up
C.
breaking down
D.
putting up
【单选题】如果抽样结果有95%的可信赖程度，则（ ）
A.
抽样结果有5%的可容忍误差
B.
抽样结果有5%的抽样风险
C.
抽样结果有5%的可容忍偏差率
D.
抽样结果有5%的预计总体偏差率
【单选题】The prices of goods kept ____. We had to cut the expenses in order to meet our daily needs.A．stan
A.
19.The prices of goods kept ____. We had to cut the expenses in order to meet our daily needs. A．standing up
B.
breaking down
C.
going up
D.
putting up
【单选题】The prices of goods kept rising, _________ the wages of works kept the same.
A.
consequently
B.
otherwise
C.
whether
D.
whereas
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