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【简答题】
当4．20 g某非电解质溶解在40．0 g水中后，此溶液在一1．52℃结冰，则该非电解质的相对分子质量近似为______________。(水的Kf=1．86 K.kg.mol-1)
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【单选题】We _____ last night,but we went to appreciate the flowerbeds and streetlights in Tian’anmen Square instead.
A.
might study
B.
could study
C.
should have studied
D.
must have studied
【单选题】If we learn to appreciate _____ is new and different, we will be well-prepared for ____ the future may have in store.
A.
that; whatever
B.
what; whatever
C.
that; whichever
D.
which ; that
【单选题】If we learn to accept change and appreciate what is new and different, we will be well-prepared for whatever the future may have _______.
A.
in vain
B.
in store
C.
in demand
D.
in general
【简答题】In America we are raised to appreciate the accomplishments of inventors and thinkers—creative people whose ideas have transformed our world. We celebrate the famously imaginative, the greatest artists...
【单选题】下列表述中不确切的是( )。
A.
单糖在碱性条件下氧化时，因氧化剂的强弱不同而氧化产物也不同
B.
单糖是多羟醛或多羟酮，所以具有醛基、酮基、醇羟基的性质
C.
葡萄糖用稀碱液处理时，会部分转变为甘露糖和果糖
D.
单糖分子中含多个羟基，这些羟基能与酸作用生成酯
【单选题】下列选项中哪项是八字服务的基本要求 ( ) 。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
、实在、热情、耐心、周到
B.
、主动、周到、热情、和蔼 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
、主动、热情、耐心、周到
D.
、耐心、周到、协调、主动
【单选题】We appreciate your suggestion () establish agency relationship between our banks .
A.
to
B.
that
C.
we
D.
for
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