皮皮学，免费搜题
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【单选题】
包膜病毒体的感染一般不直接导致被感染细胞A.
膜抗原性改变
B.
过渡生长及分化
C.
融合
D.
裂解
E.
出现包涵体
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】It' s cold outside. You' d better__________your coat.
【单选题】Keep the door ______. It's too cold outside. [ ]
A.
closing
B.
closed
C.
to close
D.
open
【单选题】— It's cold outside. Put on your coat, ____ you may catch a cold. — OK, I will. [ ]
A.
and
B.
but
C.
or
D.
so
【单选题】It's very cold outside. You______ put on your overcoat.
A.
had better to
B.
would better to
C.
had better
D.
would better
【简答题】地貌旅游资源可以分为哪五大类?
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