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问题 单项选择题

正常血细胞PAS反应，下列何者不正确（）

A.原粒细胞阴性反应，早幼粒细胞后阶段阳性逐渐增强

B.幼红细胞和红细胞均呈阳性反应

C.大多淋巴细胞为阴性反应，少数淋巴细胞呈阳性反应

D.巨核细胞和血小板均呈阳性反应

E.以上都不正确

答案

参考答案：B

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Part 4


Questions 26-45


·Read the following passage and decide which answer best fits each space.
·Forquestions26-45, markoneletterA, B, C or D on the Answer Sheet.
Both (26) and zoology are parts of a more general field of science, biology. The two are studies of (27) things, which share certain characteristics, (28) they are plants or animals. Botany deals with plants, whose organisms that can (29) their own food by the use of sunlight. Zoology on (30) hand, deals with animals, those organisms that cannot manufacture their own food and are thus dependent (31) plants for their food.
(32) plants and animals share many abilities, the extent (33) which plants can exercise some of those abilities is (34) . For example, both plants and animals need food, water, and warmth for growth, (35) plants can move to (36) those needs only by the slow extraction of their leaves and roots, while animals can move relatively (37) distances in relatively little time. When an animal is hurt with needle, the animal will (38) the part of the body (39) . This ability to draw back (40) pain or irritation, called irritability, is found only to a very limited extent in plants.
If plants (41) the same (42) as animals, animals would have had a more difficult time finding food. If animals were as limited as plants, they might (43) a means of manufacturing their own food, as plants do now. The world would be a very different place (44) it is if the characteristics of plants and animals were (45)

A．because

B．therefore

C．but

D．and
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多项选择题

社会存在作为历史唯物主义的特有范畴，其基本要素所包括的内容有（）。

A.地理环境所形成的生态系统

B.从事物质生产和自我生产的人们的总和

C.物质资料生产活动的物质内容和社会形式

D.在物质生产活动的基础上形成的政治机构
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