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问题 单项选择题

当市场价格低于均衡价格，投机者低价买入合约；当市场价格高于均衡价格，投机者高价卖出合约，从而最终使供求趋向平衡。投机者的这种做法可以起到( )的作用。

A．承担价格风险
B．促进价格发现
C．减缓价格波动
D．提高市场流动性

答案

参考答案：C

阅读理解

When you work long hours and Sundays are no longer a day to rest, feeling overworked can become the new normal. Take sportsmen as examples and do the same yourself, so you’ll know if you’re overworking.

Check your resting heart rate (率). Every day, before you get out of bed, take your pulse (脉搏). Usually your heart rate will stay within a few beats every minute. But when you’re overworked, the rate increases. If your heart rate is up in the morning, get a little more rest or sleep that night.

Check your emotions. Getting angry easily? If you can’t put your finger on a clear reason, there may be something wrong with your emotions. Hoping to change the condition won’t help. The only way out is a break.

Check your weight. If you lose or increase more than 1% of body weight from one day to the next, something is wrong. Maybe yesterday you were too busy and failed to notice you didn’t eat and drink enough. Or maybe you failed to notice that you were eating too much.

小题1:How many ways are mentioned to check if we’re overworking?

A．Two.

B．Three.

C．Four.

D．Five.小题2:When should we check our heart rate?

A．In the morning.

B．In the afternoon.

C．At noon.

D．At night.小题3:What is the best way to deal with the problem of overwork?

A．Doing more sports.

B．Drinking more water.

C．Having more rest.

D．Eating less food.
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问答题 简答题

设备选型的原则及应该注意什么？
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