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【判断题】
、氧化铜难于选矿富集,一般用火法冶金或其他方法处理( )A.
正确
B.
错误
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举一反三
【单选题】As a matter of fact, we do meet now and then, but not ________. [ ]
A.
regularly
B.
actually
C.
gradually
D.
normally
【单选题】We do meet now and then, but not ________.
A.
freely
B.
commonly
C.
regularly
D.
presently
【简答题】阅读理解。 The centerpiece of curling (冰壶) is the curling stone, which has been called a 'geometrical piece of tooled geology (地 质).' Kays of Scotland has been curling stones since 1851, when ...
【简答题】B The centerpiece of curling(冰壶)is the curling stone, which has been called a “geometrical piece of tooled geology (地质). ” Kays of Scotland has been curling stones sin ce 1851, when Willi...
【单选题】Now it won't be long before we meet again, ______ ?
A.
will it
B.
do we
C.
won't we
D.
does it
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