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【单选题】
生活史中只有滋养体期的寄生原虫是A.
阴道滴虫
B.
蓝氏鞭毛虫
C.
弓形虫
D.
疟原虫
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反馈参考答案：
举一反三
【单选题】When the old man recalled the old hard times, he always said, “ It was the first time that I ____ a full meal. I remembered it forever.”
A.
have eaten
B.
had eaten
C.
were eating
D.
ate
【单选题】The old man, ____________abroadfor twenty years, is on the way back to his motherland.
A.
to work
B.
working
C.
to have worked
D.
having worked
【简答题】会计监督是一种事后监督。（ ）
【单选题】Can you tell me______? [ ]
A.
how old is the old man
B.
how old the old man is
C.
how is the old man
D.
when is the old man coming
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