根据FAB分型，诊断急性白血病需具备（） A.骨髓增生极度活跃 B.肝脾淋巴结肿大

此患者最可能合并的水、电解质失衡的诊断为

A．低渗性脱水

B．等渗性脱水

C．轻度高渗性脱水

D．中度高渗性脱水

E．重度高渗性脱水

下列几条解释中，哪一条不是硒的毒作用机制（）。

A.自由基形成

B.酶活性抑制

C.S-腺苷蛋氨酸耗损

D.产生活性氧

E.遗传性状突变

All living things must fight to stay alive. They have to feed on something and at the same time avoid being eaten. Therefore they have to solve this big problem of staying alive in their own way.

The danger of being eaten in the sea is great. Those plants and animals that do survive usually reproduce very fast and in great numbers.

Certain sea animals have defensive devices(装置) which help them to survive. The jelly fish have poisonous tentacles(触角) which are used for attack and defence.

Another method of survival which sea plants and animals use is disguise(伪装). They usually have the same color as their surroundings.

In order to stay alive, animals need to have good senses. Fishes have sharp eyes. Almost all animals are sensitive to touch. Fishes judge movements in the water by means of their lines. Fishes and other sea animals can hear well and many of them can make different types of warning sound.

小题1:What is the greatest problem that the living things face?(no more than 10 words)

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小题2: How many ways that animals in the sea survive are mentioned (提到)（no more than 2 words）?

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小题3:What do the jelly fish have to protect themselves from being attacked?(within 15 words)

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小题4:What does the word "survive" in the second paragraph mean?(no more than 6 words)

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小题5:List at least two methods of helping animals survive.(no more than 15 words)

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他是文艺复兴的先驱,其代表作是《神曲》,他是[ ]

A．但丁                

B．达．芬奇              

C．哥白尼          

D．莎士比亚

甲企业2005年度按《企业会计制度》计算的税前会计利润为1000000元，所得税税率为33%，当年按税法核定的全年计税工资为200000元，该企业全年实发工资为220000元。假定该企业全年无其他纳税调整事项。