分类是化学学习和研究的常用方法之一．下列物质的分类正确的是（ ） A．H2O、H

现在，大型手术使用全身麻醉药剂已是司空见惯、不足为奇的事情了。在世界医学史上，最早制成这种药剂的医生是（　　　）

A．扁鹊

B．李时珍

C．张仲景

D．华佗

以下关于某种发明能否授予专利权的判断中，哪个是正确的()

A．一种能够控制特定机械状态发生概率的装置，由于该装置可能被用于赌博，因此该装置不能授予专利权

B．一种能治疗肺癌的药品，由于医药卫生行政部门认为该药副作用超标，不准许其上市，因此该药品不能授予专利权

C．一种能致人失明的公安部门使用的防暴武器，由于该武器的使用会致人伤残，因此该武器不能授予专利权

D．一种能透过玻璃听到他人谈话的装置，由于该装置可能被用于窃听，危害公共秩序，因此该装置不能授予专利权

维持细胞外液渗透压的重要离子是

A．K⁺

B．Na⁺

C．Mg²⁺

D．H⁺

E．Ca²⁺

As the sound of footsteps behind her grew louder, she quickened her pace. She didn’t want to turn around as the memory of that morning’s newspaper headline made her afraid of what she would see: “City Killer Claims Fourth Victim.”

“Why did I stop for a few drinks in the bar after work?” she thought to herself. Now it was dark and the streets deserted. She was alone and a sitting duck.

She felt as if she was walking in the rain. Her clothes were damp from nervous sweat and as each short hot breath hit the night air, it turned to steam, coating her glasses in a thin film so all she saw seemed covered in fog.

The footsteps were closer now. She needed to get off this street. Her eyes began a useless search for an open store or lighted window. Passing a small lane she looked through, for a possible escape route. But the lane was a dead - end and she laughed to herself at the irony ( 具有讽刺意味的事 ).

The sound of a car behind her turning onto the street interrupted her self – pity. Escape was at hand. But as she was about to throw herself onto the road and shout for the car to stop, the car’s headlights cast a shadow that paralyzed ( 使瘫痪 ) her with terror.

It was the footsteps’ owner. The figure was huge and in its raised arm it held what looked like a lead-pipe, no doubt the one that was about to claim victim number five.

The shadow dissolved as the car passed by and disappeared into the distance. She felt a hand on her shoulder. It was all happening as if in slow – motion. She was waiting for her life to flash before her eyes like all those novels said it would – but it didn’t. The only thing she thought of was her dear husband. She recalled phoning him from work that very afternoon and joking about, of all things, the city killer. It was a night full of ironies.

There was a voice talking to her now but she was lost in thoughts of her fate and didn’t respond. The hand then began turning her around. It was surprisingly gentle given what was about to come. She allowed it to guide her without resistance ( 抗拒 ).

She looked up. She recognized the face, but she didn’t know from where. Its mouth was still talking to her but she couldn’t understand. Then she remembered. The face belonged to the foreign looking man who had served her at the bar. She looked down to his hand and saw in it not a lead – pipe but a rolled up copy of a work report she had been correcting in the bar as she drank.

His words suddenly started to register in her brain and she could hear him. “Miss, Miss. Are you OK? You left this in the bar and it looked important so I thought I’d better give it to you.”

71. The woman was feeling nervous because        .

A. she had left her report in the bar

B. there was a killer in the city

C. she was being followed by someone

D. the streets were dark and empty

72. The underlined expression “a sitting duck” (paragraph 2) is closest in meaning to “        ”.

A. an easy target              B. a frightened person

C. a foolish animal            D. a still position

73. What is the correct order of events that happened to the woman on the day of the story?

a. She went for a drink in a bar.       b. She corrected the report.

c. She heard loud footsteps.    d. She read the newspaper.

e. She called her husband.       f. She felt a hand on her shoulder.

A. d,c,a,e,b,f    B. c,d,a,e,f,b    C. d,a,b,e,c,f    D. d,e,a,b,c,f

74. Why did the woman laugh when she looked into the lane?

A. She was excited because she thought it may be a way to escape.

B. She felt bitter because she had no chance to escape.

C. She was becoming more and more nervous.

D. She realized that she was behaving foolishly.

75. Which of the following can be inferred from the passage?

A. It was raining when she left the bar.

B. The woman had felt nervous about the city killer for days.

C. The temperature was very low that evening.

D. The woman was behaving unreasonably.

在17世纪的欧洲，贵族形式主义文学（即“巴洛克文学”）流行一时，意大利出现了“马里诺诗派”，西班牙出现了（）。