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【单选题】
He offered to do the work _______ ,which was surprising, because he was often thought of as selfish.A.
of free
B.
for free
C.
of freely
D.
for freely
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举一反三
【单选题】某羊场 羔羊陆续出现咳嗽,已有 7 只羊发生死亡。患羊大多被毛粗乱、消瘦、贫血,频繁咳嗽,特别在夜间和清晨出圈时尤为明显,流鼻涕,呼吸困难。剖检病变死亡羊只,肺脏萎缩、气肿,切开肺脏、气管与支气管,内有大量成团的乳白色长 30 ~110mm 的细线状虫体并伴有大量血丝状脓性分泌物。该病最有可能是( )
A.
毛首线虫病
B.
肺线虫病
C.
蛔虫病
D.
钉尾线虫病
E.
钩虫病
【单选题】I'm wondering how he can manage to ______ such a difficult problem.
A.
put up with
B.
get along
C.
deal with
D.
take off
【单选题】____ friend of my grandfather's will come tomorrow. I'm wondering how old ____ man he might be. [ ]
A.
The; a
B.
The; the
C.
A; a
D.
A; the
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