试题与答案

目前发现的,多金属结核最为富集的区域为东太平洋的()区。A、AA B、BB C、CC D、

题型:单项选择题

题目:

目前发现的,多金属结核最为富集的区域为东太平洋的()区。

A、AA

B、BB

C、CC

D、DD

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A, B, D, E

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GPS, which means Global Positioning System, is a small radio receiver. It looks like a mobile phone.  小题3:  We also find GPS devices in cars, planes, or boats. Some of these devices have electronic maps, so you know where you are.   小题4:

Some people think that in the future the GPS will be as common as the mobile.   小题5:  here are also new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost again.

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