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【单选题】
下列关于酶蛋白和辅助因子的叙述,哪一点不正确A.
酶蛋白或辅助因子单独存在无催化作用
B.
一种酶蛋白可与多种辅助因子结合成全酶
C.
一种辅助因子只能与一种酶蛋白结合全酶
D.
酶蛋白决定结合酶蛋白反应的专一性
E.
辅助因子直接参加反应
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举一反三
【单选题】We wish to introduce _________ the largest exporter of fabrics of high quality.
A.
that we are
B.
it that we are
C.
ourselves as
D.
ourselves to be
【单选题】An exporter cannot receive payment until the goods on consignment ______ sometime in the future.
A.
have offered for sale
B.
are quoted
C.
arrive at destination
D.
have been sold
【单选题】公路技术等级分级时使用的交通量指的是（ ）
A.
平均日交通量(ADT)
B.
年平均日交通量(AADT)
C.
年平均工作日交通量(AAWT)
D.
平均工作日交通量(AWT)
【单选题】We are one of the ______ firms handling the exporter of textiles and garments.
A.
big
B.
leading
C.
large
D.
biggest
【单选题】___ the recommendation ____BCD Company in our area, we know you are a leading exporter of textiles.
A.
On; of
B.
In; of
C.
To; in
D.
With; in
【简答题】( )指的是建筑物整体与局部构件给人感觉上的大小与其真实大小之间的关系。
【简答题】What is the discount offered by the exporter?
【简答题】We learned from your advertisement in Globe Boston that you are an exporter of glass art works and we are taking the liberty to ask you to send us some samples of the advertised products. Our firm is ...
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