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【简答题】I must save up my money to get a new pair of sports shoes because all of my current ones are wearing ______.
【单选题】I save my money all year then on Black Friday I go on a ______ .
A.
buying bonanza
B.
trading tirade
C.
purchasing power
D.
shopping spree
【简答题】I must save up my money to get a new pair of sports shoes because all of my current ones are worn ______.
【单选题】氧气是空气的主要成分之一，下列有关氧气的说法错误的是 [ ]
A.
氧气在某些状态下是淡蓝色的
B.
鱼类能在水中生存，证明氧气易溶于水
C.
用带火星的木条看能否复燃用来检验一瓶气体是氧气
D.
铁丝能在氧气中剧烈燃烧，火星四射，产生黑色固体
【单选题】I must save up my money to get a new pair of sports shoes because all of my current ones ____________
A.
being exempt from
B.
approving of
C.
are wore out
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