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问题 单项选择题

使用便携式可燃气体探测仪时，在危险地点（）会危害仪器的内部安全，可能导致火灾或爆炸。

A.更换电池或充电

B.调节传感器

C.关闭显示屏

D.关闭报警器

答案

参考答案：A

单项选择题

( )是一种非商业性信贷，属于国家主权外债，由国家统一对外举借。

A．外国政府贷款

B．国际金融组织贷款

C．国际商业贷款

D．国际贸易贷款
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单项选择题 案例分析题

Wise buying is a positive way in which you can make your money go further. The （）you go about purchasing an article or a service can actually （）you money or can add （）the cost.

Take the （）example of a hairdryer. If you are buying a hairdryer, you might （）that you are making the （）buy if you choose one （）look you like and which is also the cheapest （）price. But when you get it home you may find that it （）twice as long as a more expensive （）to dry your hair. The cost of the electricity plus the cost of your time could well （）your hairdryer the most expensive one of all.

So what principles should you （）when you go out shopping?

If you （）your home, your car or any valuable （）in excellent condition, you’ll be saving money in the long （）

Before you buy a new （）,talk to someone who owns one. If you can, use it or borrow it to check it suits your particular （）

Before you buy an expensive （）,or a service, do check the price and （）is on offer. If possible, choose （）three items or three estimates.

请在第（）处填上正确答案。

A.cause

B.make

C.leave

D.prove
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