加气站可分为（）、（）、分体橇装式加气站。

在树型结构中，树根结点没有（）。

Can you imagine a classroom without one thing that has long been considered a necessary part? No notebooks, no textbooks, no test papers. Nor are there any pencils or pens, which always seem to run out of ink at the critical moment.

A “Paperless classroom” is what more and more schools are trying to realize. Students don’t do any handwriting in this class. Instead, they use hand-sized or specially-designed computers. The teacher downloads texts from Internet libraries and sends them to every student’s personal computer.

Having computers also means that students can use the Web. They can look up information on any subject they’re studying, from maths to social science.

A high school teacher, Judy Herrel in Florida, US, described how her class used the Web. “Using a book that’s three or four years old is impossible,” she said.

A paperless classroom is a big step towards reducing the waste of paper.

“Think about the money and trees we could save with the computers,” she said.

But, with all this technology, there’s always a risk that the machines will break down. So, in case of a power failure or a technical problem, paper textbooks should still be widely available (可得到的) for these students.

小题1:The underlined word “critical” in the first paragraph probably has the same meaning as _______.

A．worrying

B．dangerous

C．happy

D．important小题2:You are sure to find __________ in a paperless classroom.

A．pens

B．computers

C．test papers

D．notebooks小题3:According to Judy Herrel, __________.

A．the Web can talk the students everywhere

B．the Web can take the place of teachers

C．the Web is a better tool for information

D．the Web is for downloading information小题4:The paper textbooks should still be widely available because __________.

A．students won’t have trouble with their pens

B．computers may break down sometimes

C．students may not get all information from the Internet

D．paper textbooks may give students more information

根据《土地管理法》，每公顷被征收耕地的安置补偿费，最高不得超过被征收前3年平均年产值（ ）倍。

A．4

B．6

C．10

D．15

古代诗歌阅读（11分）

阅读下面这首唐诗，完成小题。

早寒有怀①　

【唐】孟浩然 　

木落雁南度，北风江上寒。

我家襄水②曲，遥隔楚云端。

乡泪客中尽，归帆天际看。

迷津欲有问，平海夕漫漫。　

[注]①当时作者漫游在长江下游一带。　　②襄水，古属楚国。

小题1:诗人是如何写出“早寒”的特点的？请结合诗句具体说明。（5分）

小题2:诗的第二、三联是如何抒发作者的思乡之情的？请作简要赏析。（6分）

哪项不是胃癌的癌前病变（）

A.慢性萎缩性胃炎

B.腺瘤型胃息肉

C.残胃炎

D.慢性浅表性胃炎

E.少数胃溃疡