某套利者以63200元/吨的价格买入1手铜期货合约,同时以63000元/吨的价格卖出

题型:单项选择题

问题:

某套利者以63200元/吨的价格买入1手铜期货合约,同时以63000元/吨的价格卖出1手铜期货合约。过了一段时间后,将其持有头寸同时平仓,平仓价格分别为63150元/吨和62850元/吨。最终该笔投资的价差______元/吨。

A.扩大了100
B.扩大了200
C.缩小了100
D.缩小了200

考点:期货从业考试期货基础知识期货基础知识14
题型:单项选择题

阅读理解。

     Children are amazing! They ①pick up languages so naturally and easily. Have you ever wondered why?

It's not because they have great natural language abilities. ② In fact, studies show that an adult's potential (潜

能) to learn language is as good as a child's.

     So why do children still seem to acquire (学到) languages more quickly than the rest of us? It's because

of the way they learn. Children learn by simply doing what comes naturally-they listen, copy and communicate.

Let's take a closer look at how children acquire languages. Perhaps we can discover a better, more "natural"

way to learn English.

     Children don't practice grammar drills, but use languages to talk about things that interest them. This helps

them learn to express themselves. They don't worry about inadequate (不足的) vocabulary or poor grammar.

They find ways to express themselves, and they do it successfully.

     ③Students should pay more attention to genuine (真实的) communication. Look for chances to talk with

people in English. If you can't find a foreigner to talk to, talk with other English students instead. Start an

English discussion group and chat about music, movies or whatever interests you.

     Don't worry about making mistakes. The aim is to learn how to communicate easily and comfortably.

Remember that you can communicate successfully even with a small vocabulary.

     Trust your own natural ability to learn English. You've got more potential than you probably realize!

1. 在文中找出①处划线短语的同义词。

     ______________________________________________________

2. 将文中②处划线句子翻译成汉语。

     ______________________________________________________ 

3. Do children worry about poor grammar when they learn to express themselves? 

     ______________________________________________________

4. 将文中③处划线句子改为被动语态。

   Genuine communication should ______  ______ more attention to by students.

5. As a student, how should you learn language by reading the passage? 

    ______________________________________________________

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我国第一台无缆水下机器人的名称是什么?

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判断急性化脓性腹膜炎的主要体征是()

A.压痛和反跳痛

B.频繁呕吐

C.腹胀加重

D.肠鸣音减弱

E.腹痛加重

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在厚板成形模具中,凸模一般采用哪种材料()

A.45#

B.Cr12

C.Q235-A

D.20#

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GTO的门极驱动电路包括()。

A、开通电路

B、关断电路

C、反偏电路

D、缓冲电路

E、抗饱和电路

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