Ⅰ度拥挤的拥挤量是A．2～4mm B．4～6mm C．5～8mm D．8～10mm

如图所示的电路图中，能用电压表正确测出灯L₂两端电压的是[ ]

A．

B．

C．

D．

腹部CT扫描技术不包括（）

A.常规为患者仰卧，头先进

B.定位像为正位定位像

C.肝脏和脾脏以膈顶为扫描基线

D.腹膜后腔以肾门为扫描基线

E.肾和肾上腺以肾上极为扫描基线

瘦肉精(Clenbuterol)是一种非常廉价的药品，对于减少脂肪增加瘦肉 (Lean Mass)作用非常好。但它有很危险的副作用，轻则导致心律不整，严重一点就会导致心脏病。瘦肉精是白色或类白色的结晶粉末，其结构简式为：关于瘦肉精下列说法不正确的是

A．分子式为C₁₂H₁₈Cl₂N₂O

B．该有机物核磁共振氢谱有7种类型氢原子的吸收峰

C．该有机物能发生催化氧化反应

D．该有机物含羟基、氯原子、氨基、肽键四种官能团

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

酸气中的主要杂质有（）。

A、NH₃、CO₂

B、CO₂、水蒸气、烃、NH₃

C、CO₂、烃

D、烃、水蒸气