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【单选题】
下列因素中与睾吸虫病的感染有是A.
居民生产生活赤脚下水
B.
人粪便污染鱼塘，并生食福寿螺的习惯
C.
人粪便污染鱼塘，喜食"鱼生粥"
D.
居民喜生食菱角、茭白等水生植物
E.
居民与塘水接触，并喜食淡水蟹类
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【单选题】— What happened to you just now, Daisy? — My key was missing. I had to ______ the door open. [ ]
A.
leave
B.
keep
C.
break
D.
force
【单选题】. ------ The door was open. ----- It ___________open. I had locked it myself and the key was in my pocket.
A.
can’t be
B.
mustn’t be
C.
can’t have been
D.
mustn’t have been
【简答题】中国的和平发展道路,是一条统筹()和对外开放的发展道路。
【单选题】When I got home, I found the door open. A．terrible thought me—had anyone broken. A．beat
B.
knocked
C.
struck
D.
appeared
【单选题】"The door was open." "It ______ open. I had locked it myself and the key was in my pocket."
A.
can't be
B.
mustn't
C.
can't have been
D.
mustn't have been
【单选题】—What happened to you just now, Daisy? —My key was missing. I had to _____ the door open. [ ]
A.
force
B.
keep
C.
break
D.
leave
【单选题】The door open. I had locked it myself and the key was in my pocket.
A.
won’t be
B.
can’t have been
C.
mustn’t be
D.
needn’t have been
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