试述清朝前后期政治制度呈现哪些性质不同的特点。

南方地区控制和防止夏季地面泛潮的措施（）

A.普通粘土砖地面

B.水磨石地面

C.水泥砂浆地面

D.塑料地板地面

Peter Fern was crazy about mountains. Climbing was the  1 of his life. Church towers，seaside cliffs, rock faces, ice mountains，anything “If it is there” , he used to say, “then I want to climb it.”

So the news of his marriage gave me a   2 . I’d never known him to take much interest in   3 . Well，Peter Fern a married man! I couldn't  4 it. I  5 whether his wife would try to stop some of his risky   6 .

She was French perhaps--from that place   7 he usually spent his holidays. Chamonix，wasn’t it? From Chamonix he'd climbed Mount Blanc on his seventeenth birthday, and another one the day after! That was it, then: She was French，from a mountaineering family. No  8 . No other explanation.

A month later I met them  9 in town. Anna surprised me—because she was English. She was a dancer in the   10．

“I have   11 climbed more than sixty steps in my life,” she told me. “Peter has his   12 , and I’ve got mine. No   13 ”. “None at all，”Peter said, smiling. “Where did you spend your   14 ?” I askeD．Somewhere far  15 theatres and mountains，was it? “We had a week's holiday,” Anna said, “I flew to New York to see Dirke Dancers on Broadway. A wonderful  16 !” Peter said, “I didn’t want to   17 the good weather. So I went to Switzerland and climbed the north   18 of the Eiger with Allen Dunlop. Great   19 , the Eiger. Grand place for a honeymoon! I’ll show you the   20 we took one day.”

1． A．purpose                B．love                  C．answer                  D．even

2． A．joy                       B．thought              C．lesson                   D．shock

3． A．mountains             B．churches            C．faces                    D．girls

4． A．accept                  B．understand         C．bear                     D．tell

5． A．believed               B．knew                 C．wondered              D．realized

6． A．jobs                     B．words                C．adventures            D．deeds

7． A．where                   B．when                 C．which                   D．how

8． A．one                      B．reason               C．sign                      D．doubt

9． A．all                    B．two                   C．both                     D．double

10．A．family　             B．mountain           C．theatre                  D．holiday

11．A．ever                    B．even                  C．never                    D．almost

12．A．interests               B．life                    C．room                    D．car

13．A．wonder            B．way                   C．time                     D．problems

14．A．days                    B．honeymoon        C．childhood             D．rest of life

15．A．away                   B．as                      C．by                        D．from

16．A．show                   B．sight                  C．scene                    D．game

17．A．miss                    B．escape               C．break                    D．forget

18．A．position               B．face                   C．point                    D．line

19．A．programme          B．progress             C．fun                       D．invention

20．A．photographs         B．roles                  C．sports                   D．pains

高等教育宏观管理系统的构成要素主要包括（）。

A.中央和地方政府

B.社会

C.高校

D.市场

翻车机在运行中，作业区内（）无关人员靠近。

A.不准

B.允许

C.经批准可以

D.有人监护下可以

变压器防爆筒的结构和作用是什么？