电子商务的技术特征是指其必须以现代网络技术为支撑，打破了传统商务活动的时空概念，以全

矿井设计服务年限

现浇多层钢筋混凝土框架柱时，一施工段内每排柱子的浇筑顺序为（）

A.由一端向另一端推进

B.由内向外对称地顺序浇筑

C.由外向内对称地顺序浇筑

D.任意顺序浇筑

Ever wondered how one person could save the planet from the effects of climate change?

A British-made computer game on trial release on Monday creates different ways of doing just that．

“Fate of the World”puts the Earth’s future in players’ hands, placing them in charge of an international environmental body which could save the world from the effects of rising greenhouse gas emissions（排放）or let it destroyed by more emissions．

Through different scenes, players can explore options such as geoengineering（地球工程） and alternative energy sources to save the planet from rising temperatures, decreasing natural resources and a growing population over the next 200 years．

An improved version of the game will be followed by a three-month feedback period from players, with final release due in February next year．

Created by Oxford-based games developer Red Redemption, the game is different from other mainstream action games mainly by using data from real climate models and advice from scientists and economists．

“Science data is often inaccessible and we are trying to put players in a position of power and connected with the issues,” Gobion Rowlands, Red Redemption’s founder and chairman said．

This year, a series of apparent errors in climate science and the failure of UN talks to reach an international deal to cut greenhouse gas emissions appeared to weaken the public’s interest in climate change．

However, games centered on sustainability（持续性）and human rights have been growing in popularity and are welcomed by green groups as a way of raising awareness．

Using climate change as inspiration for entertainment shows the issue has affected global culture, which can only be a good thing．Friends of the Earth’s head of climate Mike Childs said.“We need creative industries to work with these big issues as the results can be extremely powerful and can help us to understand what a sustainable future looks and feels like,”he added．

小题1:“Fate of the World” in the passage refers to                      ．

A．a book on computer games

B．a company developing computer games

C．a computer game on climate change

D．a player in charge of computer games小题2:What makes the climate computer game different from the other games?

A．It uses data from real climate models and advice from experts．

B．It is the only computer game about climate．

C．It can save the planet from the effect of climate change．

D．It aims to affect the global culture．小题3:It can be concluded from the passage that                        ．

A．games on sustainability and human rights are very popular among young players

B．the game increases players’ awareness of environmental protection

C．only computer experts can play the new climate computer game

D．after a three-month feedback period from players, the new game is on sale now小题4:Which of the following can NOT the players experience while playing the new game?

A．Challenging the climate change in an unreal world

B．Understanding what a sustainable future looks and feels like

C．Enjoying the power to decide the earth’s fate

D．Predicting what will happen in 200 years小题5:In which column of a newspaper can you probably read this article?

A．Weather & Climate

B．Science & Technology

C．Life & Entertainment

D．Sports & Culture

强氧化剂破胶在3-14之间均可使用，最常见的是（）。

A.硝酸盐

B.硫酸盐

C.过硫酸盐

D.碳酸盐

在吸烟与肺癌关系的研究中，如果对照组的男性显著多于病例组则会有可能造成（）。

A.选择偏倚

B.失访偏倚

C.混杂偏倚

D.测量偏倚