美国的“硅谷”位于：[ ] A、洛杉矶附近 B、旧金山附近 C、纽约附近 D、休

     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?

胸腺浅皮质区与髓质之间的深皮质区即副皮质区是B细胞定居场所。（）

下列耳鼻喉科疾病中，"是喉黏膜的急性卡他性炎症，常继发于急性鼻炎、鼻窦炎、急性咽炎，为整个上呼吸道感染的一部分"为（）。

A.急性化脓性鼻窦炎

B.慢性咽炎

C.急性喉炎

D.急性扁桃体炎

E.鼻炎

公安法制工作包括公安机关内部的法律事务和内部执法监督工作以及劳动教养案件审批、行政案件复议、行政诉讼案件审判、办理国家赔偿案件等项工作。 ( )