皮皮学，免费搜题
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【多选题】
下列民族中拥有自己文字的有()A.
藏族
B.
满族
C.
回族
D.
蒙古族
E.
维吾尔族
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The writer was _____ in his writing that he forgot to flick the ashes from his cigar.
A.
concentrated
B.
devoted
C.
absorbed
D.
fixed
【单选题】He grew more and more absorbed in his work, ______ he almost forgot his meals.
A.
that to such an extent
B.
to an extent such that
C.
to such an extent
D.
such that to an extent
【单选题】The writer was so ______ in his writing that he forgot to flick the ashes from his cigar.
A.
fixed
B.
concentrated
C.
absorbed
D.
focused
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