鸡断喙时间第一次应在(),第二次在()。上喙断(),下喙断()。

题型:填空题

问题:

鸡断喙时间第一次应在(),第二次在()。上喙断(),下喙断()。

考点:生物学动物科学动物科学题库
题型:填空题

阅读短文,根据短文内容回答问题。(共10分,每小题2分)

  On Thursday afternoon Mrs. Clarke, dressed for going out, took her handbag with her money and her key in it, pulled the door behind her to lock it and went to the Over 60s Club. She always went there on Thursdays. It was a nice outing for an old woman who lived alone.

  At six o’clock she came home, let herself in and at once smelt cigarette smoke. Cigarette smoke in her house? How? Had somebody got in? She checked the back door and the windows. All were locked or fastened, as usual. There was no sign of forced entry. Had anything been taken? She went from room to room, checking. Yes, some things were missing — her small radio, her spare watch, a camera. That was all, she thought; but she couldn’t be sure just yet. She was annoyed, of course, but rather glad that nothing had been thrown about.

  Over a cup of tea she wondered whether someone might have a key that fitted her front door — “a master key” perhaps. So she stayed at home the following Thursday. Nothing happened. Was anyone watching her movements? On the Thursday after that she went out at her usual time, dressed as usual, but she didn’t go to the club. Instead she took a short cut home again, letting herself in through the garden and the back door. She settled down to wait.

  It was just after four o’clock when the front door bell rang. Mrs. Clarke was making a cup of tea at the time. The bell rang again, and then she heard her letter-box being pushed open. With the kettle(壶)of boiling water in her hand, she moved quietly towards the front door. A long piece of wire(金属丝)appeared through the letter-box, and then a hand. The wire turned and caught around the knob(门把手) on the door-lock. Mrs. Clarke raised the kettle and poured the water over the hand. There was a shout outside, and the skin seemed to drop off the fingers like a glove. The wire fell to the floor, the hand was pulled back, and Mrs. Clarke heard the sound of running feet.

  That evening she reported the matter to the police. They were not too pleased, but they came and took away the wire and the skin. “It was only self-protection,” she told the officer. “An old woman must try to look after herself.” With the help of a doctor, the police found the man and recovered Mrs. Clarke’s things. She has become something of heroine at the Over 60s Club.

小题1: When did Mrs. Clarke go to the Over 60s Club?

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小题2: Why did the smell of cigarette smoke surprise her?

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小题3: On the third Thursday, did Mrs. Clarke go out at her usual time?

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小题4: What was Mrs. Clarke doing when she was waiting for the thief?

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小题5: What is Mrs. Clarke like?

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题型:填空题

具有器官特异性的肿瘤标志物是()

A.CEA

B.CA19-9

C.CA50

D.CA15-3

E.PSA

题型:填空题

生态工程起源于( )学科。

A.自然地理学

B.农业学

C.生态学

D.林业学

题型:填空题

以下关于趋势图的描述,哪个是正确的?()

A.趋势图相当于散点图,但其中的线条要向未来延伸

B.趋势图是帕累托图的另一个名称

C.趋势图相当于控制图,但既没有控制界限,也没有规格界限

D.趋势图是鱼骨图的另一个名称

题型:填空题

营养教育的远期效果指人们营养健康状况和生活质量的变化。( )

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