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问题 单项选择题

某工程采用最高限额成本加最大酬金合同。合同规定的最低成本为1800万元，报价成本为2400万元，最高限额成本为2600万元，酬金数额为460万元，同时规定成本节约额合同双方各50%，若最后乙方完成工程的实际成本为2650万元，则乙方能够获得的支付款额为( )万元。

A．2100

B．2600

C．2650

D．3110

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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单项选择题

传播途径是指

A．由一系列相互联系相继发生的疫源地构成的
B．传染源及其排出的病原体可以传播到达的地区
C．病原体从受感染的机体排出后，再侵入易感机体前在外环境所经历的全部过程
D．体内有病原体寄生繁殖并且能够排除病原体的人和动物
E．人群作为一个整体对某种传染病容易感受的程度
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