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【单选题】
天南星的原植物来源有A.
掌叶半夏 Pinellia pedatisecta Schott
B.
天南星 Arisaema erubescens ( Wall. ) Schott
C.
异叶天南星 heterophyllum Bl
D.
东北天南星 amurense Maxim
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举一反三
【单选题】I asked him to showme the record that ________ the meeting, but he refused.
A.
kept
B.
was kept
C.
was kept of
D.
keptof
【单选题】—I want to return the book to Jack, but I can't find him. —He _____ the library. You can find him there. [ ]
A.
has been to
B.
has gone to
C.
has left
D.
went to
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