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【简答题】
一块厚度为15mm的平凸透镜放在报纸上,透镜折射率为1.5,当凸面朝上时,像的放大率为3,求透镜的曲率半径
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举一反三
【单选题】This passage mainly centers on ______.
A.
the dramatic shift of the world economic balance
B.
the impact of the emerging economies of the 'third-world'
C.
China and India's rapid economic development
D.
rich countries' gain and loss in recent world economies
【简答题】列车向车站移交受伤旅客时,车站不得( )。办理移交手续时,列车应当编制( )和( )一式两份,一份由列车存查,一份由列车存查,一份连同车票、证明材料、相关证人或其联系方式等一并移交。
【单选题】The world is undergoing tremendous changes. The rise of globalization, both an economic and cultural trend that has swept throughout the world, has forged new ground as we enter the 21st century. But ...
A.
firm support.
B.
cautious approval.
C.
serious worry.
D.
strong repentance.
【单选题】《铁路旅客人身伤害及携带品损失处理暂行办法》（铁运[2012]319号）规定，列车向车站移交受伤旅客时，应编制（），连同车票、旅客随身携带品清单、证据材料一起移交。
A.
旅客伤亡事故记录一式四份
B.
客运记录一式二份
C.
客运记录一式四份
D.
旅客伤亡事故记录一式二份
【简答题】《铁路旅客人身伤害及携带品损失处理暂行办法》（铁运〔2012〕319号）规定，列车向车站移交受伤旅客时，应编制（）一式二份，连同车票、旅客随身携带品清单、证据材料一起移交。
【简答题】At present，the whole world seems to be ______ about how to cope with economic globalization．
【简答题】At present，the whole world seems to be ______ about how to cope with economic globalization．
【单选题】The ________ is a group of five closely associated institutions, all owned by its member countries, that provides vital financial and technical assistance to developing countries around the world. A) ...
A.
International Chamber of Commerce
B.
World Bank Group
C.
Organization for Economic Cooperation and Development
D.
World Economic Forum
【单选题】核果类果树疏果的适宜时期为:
A.
谢花后到果实成熟前均可进行
B.
开花即可进行，到果实第二次迅速生长期结束
C.
花后15-20天进行，至果实硬核前结束。
D.
采收前30天。
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