全球多媒体网络的研究领域之一是安全性，下列描述中错误的是( )。A．用户可能需要屏蔽

l like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Surely, there are times when we need to be alone. We don't always want people around. But we would feel lonely if we never had a friend.

No two people are the same. Sometimes friends don't get along well, which doesn't mean that they no longer like each other. Most of the time they will go on being friends. Sometimes friends move away, then we feel very sad. We miss them much, but we can call them and write to them. Maybe we would never see them again, and we can make new friends. It is surprising to find out how much we like new people when we get to know them. Families sometimes name their children after a close friend. Many places are named after men and women, if they are friendly to people in a town. So are some schools. We think of these people when we go to these places.

There's more good news for people, if they have friends. These people live longer than those people if those don't have friends. Why? It could be that they are happier. Being happy helps you stay well. Or it could be just knowing that someone cares, if someone cares about you, you take better care of yourself.

小题1:The first paragraph tells us __________.

A．none needs friends

B．we always need friends around us

C．making friends is the need in people's life

D．we need to be alone小题2:Which of the following is NOT mentioned in the passage?

A．People are happy when their friends leave them.

B．People may never see their friends after their friends move away.

C．People can know their friends in different ways.

D．People like their friends very much if they get to know them.小题3:Which of the following is the most probable place people name after friendly people?

A．A house.

B．A room.

C．A library.

D．A village.小题4:If people have friends, they would live longer, because __________.

A．they feel happier and healthier

B．they get a lot of help from their friends

C．they take better care of themselves

D．both A and C小题5:This passage tells us __________.

A．that people are all friends

B．that people need friends

C．how to get to know friends

D．how to name a place

腺性唇炎的病理改变为（）

A.粘膜下层可见肉芽肿形成

B.上皮角化不全，有脓性渗出或形成脓肿

C.固有层淋巴滤泡形成

D.粘膜下层唇腺导管扩张，管间炎细胞浸润

E. * * 层血管周围胶原纤维增生

胃癌的好发部位（）

A.胃窦部

B.胃体部

C.胃底部

D.胃小弯侧

E.贲门区

内联函数是通过______来实现的，因此内联函数是真正的函数。

在美国，初步设计阶段估算允许有（）的误差。

A．+30%～-20%

B．+15%～-10%

C．+10%～-10%

D．+10%～-5%