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问题 单项选择题

Cost of quality is the total cost of all efforts to achieve product/service quality，and includes all work to ensure conformance to requirements．All of the following are costs that are incurred EXCEPT （）．

A．cost of poor quality

B．opportunity cost

C．external failure cost

D．appraisal cost

答案

参考答案：B

解析：

质量成本是所有实现产品/服务质量所花费的成本，包括所有确保与需求一致的工作。下列都是质量成本，除了______。 A) 低质量成本 B) 机会成本 C) 外部失败成本 D) 检查成本

完形填空

Light and shadow (影子) are friends. They usually go together. We receive light every day. __________小题1:________________

Light cannot shine through you. ___________小题2:________________ There is a spot(斑点) on the ground next to you. The light cannot reach the dark spot. This is your shadow. 

______________小题3:_____________Your body stops very little light from reaching the ground. So your shadow is quite short.  

But in early morning or late afternoon the sun is low in the sky. The light moves over more of your body. ___________小题4:_________________ Your body keeps a lot of light from reaching the ground. 

We love light, especially sunlight. _____________小题5:______________Most of us like to stand in the shadow of a tree in summer. But some people are afraid of their own shadow at night. They do not want to walk in a dark street. They do not want to see the shadow, either. But still light and shadow usually go together.

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多项选择题

肾上腺糖皮质激素治疗迟发性哮喘的机制包括（）

A.抑制前列腺素、血小板活化因子合成

B.抑制磷酸酯酶A2

C.抑制组胺脱羧酶，减少组胺形成

D.抑制小血管收缩，减少渗出和炎症细胞浸润

E.增加β受体数量
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