B. GPS is still not accurate enough

　　C. it is difficult for drivers to use GPS equipment.

　　D. sometimes drivers are responsible for the problem

　　【答案】【解析】They actually put their home address in.有时是司机应该对这事负责，故选D。

　　43. It can be inferred from the second paragraph that _______ .

　　A. It’s impossible to drive from the east to the west in the US.

　　B. Barry Brown’s friend went to Stockholm, Sweden by plane.

　　C. Given wrong instructions, the GPS will produce wrong results.

　　D. GPS systems are for passive drivers who lack navigational skills.

　　【答案】【解析】the GPS is kind of 'garbage in garbage out'.”如果你输入错误，GPS就会产生错误的结果，故选C。

　　44. Which of the followings is one of the shortcomings of GPS equipment?

　　A. It tells the driver to turn once at a time.

　　B. It gives the driver the overview.

　　C. Its screen is too small to be seen clearly.

　　D. It is only suitable for passive drivers.

　　【答案】【解析】One problem with a lot of the GPS units is they have a very small screen and they just tell you the next turn. GPS告诉我们只能一次告诉一个转弯，故选A。

　　45. What’s the main idea of the text?

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