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【多选题】
蔗糖是由一分子 糖和一分子 糖通过 键连接而成的二糖。A.
a -D- 葡萄糖, a -D- 吡喃果糖, a - 1,2-氧苷键
B.
a -D- 葡萄糖,β-D-呋喃果糖, a - 1,2-氧苷键
C.
a -D- 葡萄糖,β-D-吡喃果糖,β-2,1-氧苷键
D.
a -D- 葡萄糖,β-D-呋喃果糖,β-2,1-氧苷键
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举一反三
【简答题】在施工质量控制点的控制中，对冷拉钢筋应注意先焊接之后再进行冷拉，其重点控制的方面是（ ）。
【单选题】we areto _________ hainan for the spring festival.
A.
considering going
B.
considered to go
C.
considering to going
D.
consider going
【单选题】We are looking forward to_______________.
A.
be written to
B.
being written to
C.
write
D.
writing
【单选题】We carefully _____ the first report with the second.
A.
contrasted
B.
compared
C.
judged
D.
recognized
【单选题】We are learning__________now.
A.
the twenty-first lesson
B.
Lesson Twenty-first
C.
the 21 th lesson
D.
Lesson 21 st
【单选题】We are ___to Hainan for the Spring Festival.
A.
considering going
B.
considering to go
C.
considering to going
D.
consider going
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