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问题 单项选择题 A1型题

乙烷毒性>丁烷毒性（）

A.在碳原子相同的情况下直链饱和烃>支链饱和烃

B.随着碳原子数目增加，麻醉作用增强

C.9个碳原子以上毒性减弱

D.有机磷结构式中的2-乙基被2-乙氧基取代后毒性增强

E.成环的烃类毒性>不成环的毒性

答案

参考答案：B

填空题

软件管理的主要职能包括组织、人员、资源、计划和 【5】 管理。
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单项选择题

In any negotiations between a party with limited aims and an opposing party with unlimited aims, the party with limited aims is bound to lose. This is so because the scope of a negotiating party’s aims determines the energy and the perseverance that will be brought to the negotiations by that party. Which of the following is an assumption implicit in the passage above

A．The intensity with which parties conduct negotiations affects the outcome of those negotiations.

B．Negotiations almost always pit against one another parties whose aims differ in scope.

C．The outcome of negotiations cannot be correctly predicted in advance.

D．A negotiator who has exceptionally high aims needs exceptional perseverance in order to avoid losing.

E．(E) Negotiating parties are typically not aware of the scope of each other’s aims until the outcome is no longer in doubt.
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