问题 名词解释

动臂再生控制

答案

参考答案:

在动臂降下工作中,从动臂油缸返回的油,流过一个控制阀内的单向阀,与泵中流出的油混合,因此动臂降下的工作比较平顺。

阅读理解

     When someone asks you to his or her home in the USA, it's very clear who the guest is and who the

host is. But invitation to restaurants are usually different. In many cases, it is the inviter who pays. But in

some cases, each one pays his or her own bill(账单). For example, when your friend says "Let's go and

get a beer," or "Want a cup of coffee?", it may be more of advice than an invitation.

     Some people like taking their friends to a restaurant for dinner instead of having dinner at home. In this case, the host is expected to pay and the guest may leave the tip(小费). If you want to invite someone for a meal at a restaurant, tell him or her: "I'd like to take you to …".

     There are also phrases that sound like invitations, but in fact they are not. People may say things like "We'll have to get together sometime," or "You'll have to come over and visit us sometime." They are the

expressions of saying goodbye. So you could answer "Yes, that would be nice," or "I'd love to," or

something similar.

1. If your friend asks you to a restaurant for dinner, you'd better _______.

A. have a free dinner

B. leave the tip

C. pay the bill

2. If someone says "Want a cup of coffee?", it may be more of ______.

A. a joke

B. advice

C. an invitation

3. Which of the following statements is an invitation?

A. We'll have to have a dinner together sometime.

B. Let's go to a sea-food restaurant and have a dinner.

C. I'd like to take you to have a dinner tonight.

4. The best title of this passage is "________".

A. Is it an invitation or advice?

B. Who will pay the bill?

C. Who will be invited?

填空题