关于皮脂腺囊肿的描述错误的是（）。 A.又称表皮囊肿 B.皮脂腺排泄受阻所形成的潴留

阅读文段，回答问题。

　　①我进中学时就开始盼望独立，甚至跟母亲提出要在大房间中隔出一方天地，安个门，并在门上贴一张“闲人免进”的纸条。不用说，母亲坚决不同意，她最有力的话就是：我们是一家人。

　　②当时，学校里有位姓毛的女生，借居在婶婶家，但不在那儿搭伙，我看她的那种单身生活很洒脱，常在小吃店买吃的，最主要的是有一种自己做主的豪气，这正是我最向往的。也许我叙说这一切时的表情刺痛了母亲的心，她怪我身在福中不知福。我说，为何不让我试试呢？见母亲摇头，我很伤心，干脆饿了一顿以示抗议。母亲那时对我怀了一种复杂的情感，她认为我有叛逆倾向，所以也硬下心肠，准备让我碰壁，然后回心转意当个好女儿。于是，母亲改变初衷，答应让我分伙一个月。我把母亲给我的钱分成30份，我想就不会挨饿了。

　　③刚开始那几天，我感觉好极了，买些面包、红肠独自吃着，进餐时还铺上餐巾，捧一本书，就像一个独立的女孩，心里充满那种自由的快乐。家人在饭桌上吃饭，不时地看我。而且有了好菜，母亲也邀我去尝尝，但我一概婉拒。倒不是不领情，而是怕退一步，就会前功尽弃。

　　④这样自由自在地过了半个来月，我忽然发现自己与家人没什么关系了。过去大家总在饭桌上说说笑笑，现在，这些欢乐消失了。

　　⑤天气忽然冷下来，我患了感冒，头昏脑胀，牙还疼个没完，出了校门就奔回家。家人正在灯下聚首，饭桌上是热气腾腾的排骨汤。母亲并不知道我还饿着，只顾忙碌着。这时候，我的泪水掉了下来。我翻着书，把书竖起来挡住家人的视线，咬着牙，悄悄地吞食书包里那块隔夜的硬面包，心想：无论如何得挨过这一个月。

　　⑥到这个月的最后一天，早晨我就断了炊，喝了点开水，一个上午饥肠辘辘。放学回家，推开房门，不由大吃一惊，母亲没去上班，正一碗一碗地往桌上端菜，家里香气四溢，仿佛要宴请什么贵宾。母亲在我以往坐的位置上放了一副筷子，示意我可以坐到桌边吃饭。我犹豫着，感觉到这样一来就成了可笑的话柄。母亲没有强拉，悄悄递给我一个面包，说：“你不愿意破例，就吃面包吧，只是别饿坏了。”

　　⑦我接过面包，手无力地颤抖着，心里涌动着一种酸楚的感觉，不由想起母亲说的话，我们是一家人。那句话刻骨铭心，永世难忘。

　　⑧事后我才知道，母亲那天没心思上班，请假在家，要帮助她的孩子走出困境。当晚，一家人又在灯下共进晚餐。与亲人同心同德，就如沐浴在阳光下，松弛而又温暖。

　　⑨如今，我早巳真正另立门户，可时常会走很远的路回到母亲身边，一家人围坐在灯下吃一顿饭。饭菜虽朴素但心中充满温情，就因为我们是一家人，是一家人！

　　⑩人长大后都是要独立的，可家和家人却是永远的大后方，永远的爱和永远的归宿。（选自《畅销书摘》2006．2有改动）

1．第5段画线句“我的泪水掉了下来”的主要原因是什么？

答：_________________________________

2．第8段中一家人共进晚餐时的快乐与第3段中“我”感受到的“快乐”有什么不同？

答：_________________________________

3．母亲开始坚决不同意“分伙”，可后来为什么又改变初衷答应了呢？

答：_________________________________

4．“这个月的最后一天”母亲没有强拉我一起吃饭，而是“悄悄”地递给“我”一个面包，表现了母亲怎样的性格特征？

答：_________________________________

5．“饭菜虽朴素但心中充满温情，就因为我们是一家人，是一家人”，这句话对表现全文的主旨有何作用？

答：_________________________________

"USA? Britain? Which country is better to study in?" We often hear such discussions. As China opens its doors, studying abroad has become a dream for many Chinese students. They want to learn about the world.

It's true that studying abroad can help students develop themselves. Language skills will improve and it may be easier to find jobs.

But there are problems that should be considered(考虑). Language is the first. Students must spend a lot of time learning another language and getting used to a different culture.

Students must also learn to live without parents' care and deal with all kinds of things they haven't had to do before, like looking after themselves. There are reports about Chinese students abroad sinking into an ocean of difficulties and giving up easily. When they have to take care of themselves, it is hard for students to study well.

Finally, studying abroad brings a heavy burden(负担) to the family. For most Chinese parents, the cost of studying abroad is very high. But is it worth it?

We know that there are many famous people who succeed in great things through their hard work in China. Liu Xiang is a good example. Once an American teacher invited him there but he refused. He kept training hard with his Chinese teacher. He surprised the world when he won a gold medal(金牌) at the Athens Olympics. So when you wonder which country is better to study in, consider whether studying abroad is the right choice(选择).

小题1:From the passage, we learn that many Chinese students dream about studying abroad to __________.

A．taste a new life

B．make a lot of money

C．learn about the world

D．learn to look after themselves小题2:The writer thinks __________ should be considered first before students study abroad.

A．places

B．time

C．money

D．language小题3:The writer mentions Liu Xiang in the passage in order to tell us that __________.

A．Chinese teachers are better than American ones

B．studying abroad is not the right choice

C．people can also be successful in China if they work hard

D．Liu Xiang was a gold medal winner小题4:Which of the following is NOT true?

A．Studying abroad will cost students' families a lot of money.

B．Studying abroad will make it easy for students to learn well.

C．Studying abroad will help students to improve language skills.

D．Studying abroad will bring students a lot of difficulties in their life.

患者，男性，36岁，主因黑色稀便3日入院，3日来，每日解黑色稀便3次，每次约260g，病前有多年上腹部隐痛史，常有夜间痛、饥饿痛，进食可缓解。查：贫血貌，皮肤无黄染，肝脾肋下未触及。

最可能的诊断是

A．胃溃疡并出血

B．十二指肠溃疡并出血

C．食管与胃底静脉曲张破裂出血

D．胃癌并出血

E．急性胃黏膜损害所致的出血

下列属于可再生资源的是( )。

A．波浪能
B．煤炭
C．石油
D．天然气

取两种不同的海绵，使其细胞分散成单个，再将它们掺在一起培养，发现只有同种的细胞才能结合。那么，与此现象有关的结构是（）

A.细胞核

B.细胞膜上的磷脂双分子层

C.细胞膜

D.细胞膜上的糖蛋白