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【单选题】
GB4789.3中大肠菌群检测第一法MPN法采用LST作为初发酵培养基，（ ）为复发酵培养基。A.
LST
B.
BGLB
C.
EC
D.
伊红美蓝培养基
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举一反三
【简答题】Western tourists not only visit Bangkok and surroundings, but in addition many travel to the southern _______ .
【单选题】Not all the tourists from Japan ________ western food to Chinese food.
A.
like
B.
prefer
C.
enjoy
D.
love
【判断题】In general there is not much difference between Western and Chinese tourists.
A.
正确
B.
错误
【单选题】Not all the tourists from Europe Western food to Chinese food.
A.
like
B.
prefer
C.
enjoy
D.
love
【单选题】Not all the tourists from Japan_______ Western food to Chinese food.
A.
like
B.
prefer
C.
love
D.
enjoy
【单选题】下列作用力中,不参与维持 DNA 双螺旋结构稳定的是( )
A.
碱基堆积力
B.
互补碱基对之间的氢键
C.
磷酸基团上的负电荷与介质中的阳离子之间形成的离子键
D.
二硫键
【单选题】Not all the tourists from Japan _______ Western food to Chinese food.
A.
like
B.
prefer
C.
enjoy
D.
love
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