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【单选题】
下列不属于修复前准备的是：（）A.
处理急性症状，如急性牙髓炎、牙槽脓肿等
B.
取观察模型及记存模型，制定修复计划
C.
保持良好的口腔卫生，彻底清除牙石牙垢
D.
拆除口腔内的不良修复体
E.
保护口内，治疗和控制龋病、牙周病颊系带修整
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举一反三
【简答题】reduce the chance of a large loss by sharing risks ________
【单选题】I don't _________ any chance to further reduce our price.
A.
change
B.
see
C.
look
D.
meet
【单选题】B Spending two or three hours playing outdoors each day can reduce a child’s chance of becoming short-sighted, a research shows. It challenges (挑战) the belief that short- sightedness is caused by comp...
A.
2 hours.
B.
90 minutes.
C.
1 hour.
D.
30 minutes.
【简答题】阅读理解。 Spending two or three hours playing outdoors each day can reduce a child's chance of becoming short- sighted, a research shows. It challenges (挑战) the belief that short-sightedness is caused by ...
【简答题】Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted（近视）,research shows . It challenges the belif that short-sightedness is caused by computer...
【单选题】The new measure will reduce the chance of serious injury in the event of an accident.
A.
e underlined part means _________.
B.
if an accident happens
C.
if an accident can be prevented
D.
before an accident
E.
during an accident
【简答题】10. It also ____
(reduce) your chance of getting diabetes.
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