题干

图是某专题研究所选取的GIS图层,读图分析回答下列各题:

【小题1】该专题研究可能是:
A.学校分布
B.工业分布与交通的关系
C.商业分布和规划
D.耕地分类和评价
【小题2】若利用该地理信息系统进行深埋垃圾场的选址,在下列图层中应增加: 
①大气污染 ②区域规划 ③交通线路 ④地下水文、地质

A:①②

B:①③

C:②③

D:②④

上一题 下一题 0.0难度 选择题 更新时间:2013-07-30 03:54:30

答案(点此获取答案解析)

D

同类题4

阅读下列短文,从每题所给的四个选项(A、B、C和D)中选出最佳选项。

    Is your TV connected to the Internet? What about your chair, or your fridge? Probably they are not. But in the future, most things in your home may be connected, thanks to the so-called "Internet of things".

    The Internet of things may be coming sooner than you think. Earlier this year, Samsung CEO spent a lot of time talking about the Internet things. He said that three years from now, every Samsung product will be part of the Internet of things, no matter whether it's a remote control or a washing machine.

    So, how do household objects that are part of the Internet of things work? Well, think of a common chair. When connected to the Internet, the chair warms up when it knows the user has just walked into the room and is feeling cold.

    An Internet-connected camera could help people feel safer in their homes. It can know people's faces and has an infrared sensor(红外传感器), so even if it's dark it can see when someone passes by and send you a message on your smart-phone to let you know who's there. If the person is someone you don't know, it can tell you that, too.

    But according to MIT Technology Review, whether companies are connecting dog food bowls or safety systems to the Internet, there may be some problems. For example, many early connected-home objects don't have much built-in security, which means they could be hacked(攻击). Moreover, it could be difficult to get these new machines to work together especially when they are made by different companies. To fight this, many companies have joined the Open Interconnect Consortium, which had 45 members by late 2015.

    So, picture this: you enter your home. The temperature changes to make you feel comfortable. Your favorite music starts playing for you. Do you think that this would be a good thing? It may happen sooner than you think.