皮皮学，免费搜题
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搜题
【单选题】
内毒素的主要成分是( )A.
肽聚糖
B.
脂多糖
C.
磷壁酸
D.
外膜
E.
脂蛋白
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举一反三
【单选题】An appropriate title for the passage might be ______.
A.
the SMS effect
B.
cultural implication of mobile use
C.
change in the use of the mobile
D.
body language and the mobile phone
【单选题】I have five picture books. And my mother buys two story books for me. How many books do I have? [ ]
A.
five
B.
two
C.
ten
D.
seven
【单选题】This is a direct result of the________ lifestyle, whose other negative implicatio ns are well documented.
A.
suburbia
B.
threshold
C.
household
D.
surplus
【简答题】某人在购买终身保险时，保证今后不再吸烟，这属于（ ）。
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