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【简答题】
丝状真菌细胞壁的主要成分是 ___ ___ ;酵母菌细胞壁的主要成分是 ___ ___ 、 ___ ___
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反馈参考答案：
举一反三
【简答题】大气环境系统
【单选题】All possible means __________.However, nothing can __________ Jack from adventuring in that mysterious forest.
A.
has tried; stop
B.
has been tried; keep
C.
have tried; keep
D.
have been tried; prevent
【单选题】According to Paul Kleihues, cancer was once regarded as
A.
an incurable disease.
B.
a mysterious disease.
C.
a 'Western' disease.
D.
a world disease.
【单选题】Diana was reading Harry Potter and the Goblet of Fire, completely ____ in the mysterious world.
A.
being lost
B.
having lost
C.
losting
D.
lost
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