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外语
What can be inferred from the first paragraph? Which of the following is true according to Paragraph 3?
What can be inferred from the first paragraph? Which of the following is true according to Paragraph 3?
admin
2009-09-12
30
问题
What can be inferred from the first paragraph?
Which of the following is true according to Paragraph 3?
选项
A、US already has 3 satellite channels in use: C/A, Y-channel and M-code.
B、Galileo will have 5 more different channels.
C、The American C/A is different from the EU’s PRS in function.
D、The American GPS has more commercial usage than Galileo.
答案
C
解析
由题干中的Paragraph 3定位到原文第三段细节部分。[精析] 原文第三段a civilian channel known as C/A(一个C/A民用频道)和a“public regulated service” (PRS)which will be used by the EU’s governments(一个将被用于欧盟的政府部门的“公共管制服务”频道)可推知两者作用不同,故C)“美国的C/A在功用上与欧盟的PRS不同”为正确答案。[排除干扰] 开头交代美国有两个频道,第三个频道的计划正在进行之中,所以已经有的只有两个,故排除 A);根据原文Galileo will debut with five different signals(伽利略刚开始会有5个频道)可以推测B)“还有5个”错误,;原文只是提及Galileo会包括一个经济性频道,并未对两者盈利性进行对比,也排除D)。
转载请注明原文地址:https://kaotiyun.com/show/bX37777K
0
大学英语四级
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