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【单选题】
下列关于糖类的叙述,正确的是 [     ]
A.
核糖存在于RNA分子中
B.
核糖、半乳糖含六个碳原子,属于单糖
C.
糖类是人体的主要储能物质
D.
人体过剩的葡萄糖可以转变成淀粉储存于肝脏或肌肉中
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参考答案:
举一反三
【单选题】It’s easy to _____ this math problem.
A.
work out      
B.
find out       
C.
look out
【单选题】---- How do you find his work?---- _____________.
A.
I find it by accident
B.
Well done
C.
Sorry, it’s out of order
D.
No wonder, here it is
【简答题】A.Work out a plan to tighten his budget. B.Find out the opening hours of the cafeteria. C.Apply for a senior position in the restaurant. D.Solve his problem by doing a part-time job.
【单选题】胚泡完全埋入子宫内膜是在受精后的( )
A.
12小时内
B.
2~3天
C.
5~6天
D.
11~12天
E.
14~15天
【单选题】Can you help me to ___ this mathematic problem?
A.
do out
B.
work out
C.
find out
D.
deal out
【单选题】I find it easy ___ out the math problems. [     ]
A.
work
B.
working
C.
works
D.
to work
【判断题】点燃蜡烛后旋转灯会转动来的原因是:蜡烛点燃后,产生的热空气形成气流,对扇叶的斜面产生推力,使灯罩不断转动。
A.
正确
B.
错误
【单选题】胚泡完全埋入子宫内膜是在受精后的
A.
12小时内
B.
2至3天
C.
5至6天
D.
11至12天
E.
14至15天
【单选题】【B3】
A.
find out
B.
learn
C.
discover
D.
work out
【简答题】A.Work out a plan to tighten his budget. B.Find out the opening hours of the cafeteria. C.Apply for a senior position in the restaurant. D.Solve his problem by doing a part-time job.
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