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【单选题】
上颌结节阻滞麻醉如针头污染可造成的间隙感染为A.
眶下间隙
B.
颞下间隙
C.
翼下颌间隙
D.
咬肌间隙
E.
下颌下间隙
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【单选题】How many crew members were aboard the ship at the time of the kidnapping?
A.
13.
B.
11.
C.
15.
D.
16.
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A.
龙骨
B.
芒硝
C.
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D.
白矾
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