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【单选题】
锅炉回油式喷油器中旋涡室是开在（）元件上。A.
喷嘴帽
B.
雾化片
C.
旋流片
D.
分油嘴
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举一反三
【单选题】--Which will you have then, the white one or the blue one?--I'll take ______ to give myself a change sometimes.
A.
one
B.
two
C.
either
D.
both
【简答题】In our life, we have rarely expressed our gratitude to the one who lived those years with us. In fact, we don't have to wait for anniversaries to thank the ones closest to us and the ones so easily ov...
【单选题】— Which will you have then, the white one or the blue one? — I'll take ______ to give myself a change sometimes.
A.
one
B.
two
C.
both
D.
either
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