空气炮清堵器作为一种新的出粮口排堵技术，一般应用于（）中。 A.钢板仓 B.浅圆仓

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     My father was Chief Engineer of a merchant ship,   which was sunk in World War Ⅱ. The book

Night of the Uboats told the story.

     Memories

     In September,   1940,   my mother,   sister and I went to Swansea,   where my father's ship was

getting ready to sail. We brought him a family photograph to be kept with him at all times and keep

him safe.

     Then I remember my mother lying face down,   sobbing. She had heard from a friend that the ship

had been sunk by a torpedo(鱼雷).

     I can remember the arrival of the telegram(电报),   which in those days always brought bad news.

My grandmother opened it. It read,   "Safe.Love Ted."

     My most vivid memory is being woken and brought down to sit on my father's knee,   his arm in a

bandage.

     He was judged unfit to return to sea and took a shore job in Glasgow for the rest of the war. For

as long as I can remember,   he had a weak heart.Mother said it was caused  by the torpedoes. He

said it was because of the cigarettes. Whichever,   he died suddenly in his early 50s.

     Ten years later I read Night of the Uboats and was able to complete the story.

    Torpedo

    One torpedo struck the ship. Father was in the engine room,   where the third engineer was killed.

He shut down the engines to slow the ship making it easier for it to be abandoned.

     By the time he got on deck(甲板) he was alone. Every lifeboat was gone except one which had

stuck fast. When he tried to cut it free,   it swung against the ship,   injuring his hand and arm.He had

no choice but to jump-still with the photograph in his pocket.

     Three days later,   he and other survivors were safe in Glasgow.All 23 with him signed the back of

the photograph.

     A Toast

     In my room is the book and the photograph. Often,   glass in hand,   I have wondered how I would

have dealt with an explosion,   a sinking ship,   a jump into a vast ocean and a wait for rescue? Lest(以

免)we forget,   I have some more whisky and toast the heroes of the war.

1. We can infer that the mother and children went to Swansea________.

A. to meet a friend

B. to see the father off

C. to take a family photo

D. to enjoy the sailing of the ship

2. What did the author learn about the father from the telegram?

A. He was still alive.

B. His knee was broken.

C. His ship had been sunk.

D. He had arrived in Glasgow.

3. The underlined word "it" in Paragraph 6 refers to the father's________.

A. weak heart

B. taking a shore job

C. failure to return to sea

D. injury caused by a torpedo

4. What can we know about the author's father after his ship was attacked?

A. He lost his arm.

B. He repaired the engines.

C. He managed to take a lifeboat.

D. He was the last to leave the ship.

5. What is the passage mainly about?

A. A group of forgotten heroes.

B. A book describing a terrifying battle.

C. A ship engineer's wartime experience.

D. A merchant's memories of a sea rescue.

患者，男性，49岁，高热、咳嗽1周，查白细胞40×10⁹／L，与慢粒白血病不符的是（）

A.外周血可见幼稚细胞

B.血小板计数正常或增多

C.骨髓中粒系中晚幼细胞多

D.NAP活性增高

E.骨髓增生极度活跃

简述畜产品供求矛盾的调节措施.

据全球PVC产业研究报告指出，中国将是全球PVC原料需求增长最快的国家，估计在2005年以前，将超过美国目前每年约540万吨的PVC的消费量，成为全球最大的PVC消费国。

据统计，2002年全球PVC消费量2530万吨，其中美国、中国、日本和德国为全球前四大PVC消费国，当年PVC消费量分别为540万吨、423万吨、150万吨及147万吨，占有全球约50%的PVC消费量；如果以每人每年PVC消费量而言，分别为24千克、3.3千克、11.8千克和18千克。过去五年来中国对PVC消费量的年复合增长率达14.5%，预估在2007年以前，中国的PVC或PVC上游原料VCM消费量仍将以每上平均9%的成长率增加，而中国本身PVC产能年增率仅2.7%，数据显示未来几年内中国仍需大量进口PVC原料。由于中国对PVC需求急速增加，国内规划未来五年内将兴建年产量170万吨的PVC生产线，产能扩张幅度约占全球PVC新增产能的2/3。报告指出，中国对PVC原料的需求主要来自住宅建筑及工程等需求，占PVC总需求量的60%，PVC管的耐用年限高达30年的良好性能使PVC成为重要的工程建设需求原料。

2002年全球PVC消费量是（）。

A．2530万吨

B．1080万吨

C．3550万吨

D．5060万吨

瘘管感染已形成脓肿者，应先行________术。