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【单选题】
今年5月,我市某区发生了一起液化气罐爆炸事故,它再次给广大液化气用户敲响了警钟.液化气的主要成分在空气中充分燃烧的化学方程式为:X+50 2 点燃 . 3C0 2 +4H 2 0,下列对X的判断不正确的是(  )
A.
X是一种有机化合物
B.
X一定含碳、氢、氧三种元素
C.
X是一种重要的燃料
D.
X的化学式是C 3 H 8
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【简答题】从以下方框中选出适当的句子,完成对话。 A. Excuse me, Sir. B. I hope so. C. What should we bring? D. We can bring small and inexpensive things. E. Or maybe just some flowers. F. Sure. Let’s go. G. That sounds like a good...
【单选题】What is a plan of development?
A.
A plan of development means a certain pattern to develop an essay.
B.
A plan of development means certain aspects designed to support a thesis.
C.
A plan of development means a way designed to organize an essay.
D.
A plan of development means certain points designed to consolidate an essay.
【单选题】细胞水肿和脂肪变性常发生在
A.
肺   脾  肾
B.
心  脾   肾
C.
心  肝  肠
D.
心  肝  肾
【单选题】—Excuse me , sir. The shoes are a bit small for me —Don’t worry . I’ll change them for a size A .smaller B. smallest C. larger D. largest
A.
1
B.
2
C.
3
D.
4
【单选题】耗竭性资源的主体是( )。
A.
水资源
B.
矿产资源
C.
经济资源
D.
人文社会资源
【判断题】产权制度产生的经济根源是社会经济资源的稀缺。()
A.
正确
B.
错误
【单选题】With the development of the society, especially the development of economy, the life both in countryside and city changes a lot. Who are still dwelling on the old life? In the villages of the English ...
A.
those happy times appear still to be with us
B.
there simply wasn't any crime to worry about
C.
many sites are not well-protected
D.
hackers try out tricks on an Internet site without actually breaking in
【简答题】发展(development)
【单选题】What does the example of 'software development' illustrate?
A.
The development of new technology offer opportunities to communications between people of different areas.
B.
The computer science in the U.S. is the most advanced in the world.
C.
The development of software is indispensable to globalization.
D.
Software development is more important to globalization than the Internet and wide-band- width international communication.
【单选题】盛产期是经济林资源资产的产品产量最高、收益多且稳定的时期,盛产期的经济林资源资产评估通常可采用的评估方法是()。
A.
比例系数法
B.
收益现值法
C.
木材市场价倒算法
D.
重置成本法
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