水泥土搅拌桩属于复合地基中的（）A.刚性桩 B.柔性材料桩 C.散体材料桩 D.竖向

慢性肺源性心脏病的X线表现，哪项错误（）

A.常有肺、胸基础疾病表现

B.可有急性肺部感染的表现

C.肺动脉段明显突出或其高度≥3mm

D.右心室肥大征

E.右下肺动脉干扩张，其横径＞10mm，其横径与血管横径之比≥1.07

某公司甲产品经两道工序加工，采用约当产量比例法分配各项生产费用。2006年4月份，甲产品生产完工500件，本月投产450件；月初在产品数量为：第一道工序300件，第二道工序300件，月末在产品数量为：第一道工序350件，第二道工序200件。其他有关资料如下：

（1）原材料在生产开始时一次投入，单位产品的标准材料消耗定额为40千克。

（2）甲产品完工产品标准工时定额为50小时，其中第一道工序为40小时；第二道工序为10小时。每道工序在产品工时定额（本工序部分）按本工序工时定额的50%计算。

（3）材料的标准价格为10元/千克，标准工资率为8元/小时，变动制造费用标准分配率为5元/小时。

（4）假设该公司采用标准成本和变动成本计算制度相结合的方式计算产品成本。

（5）本月购人原材料50000千克，材料的实际价格为12元/千克，本月生产产品实际领用19000千克；本月实际使用直接人工20000小时，实际支付工资200000元；本月实际发生变动制造费用120000元。

要求：

（1）按工时定额计算甲产品各工序在产品的完工率。

（2）按根据工时定额确定的完工率计算甲产品在产品和本月投产产品的约当产量。

（3）根据标准成本计算制度，分别计算本月生产费用、完工产品成本和月末在产品成本。

（4）计算各项成本差异（材料价格差异在购人时确认）。

下列消费观中不正确的是[ ]

A．绿色消费  　　          

B．理性消费　　

C．适度消费   　           

D．盲目消费

A child who has once been pleased with a tale likes, as a rule, to have it retold in almost the same words, but this should not lead parents to treat printed fairy stories as formal texts. It is always much better to tell a story than read it out of a book, and, if a parent can produce what, in the actual situation of the time and the child, is an improvement on the printed text, so much the better.

A charge made against fairy tales is that they harm the child by frightening him or making him sad thinking. To prove the latter, one would have to show in a controlled experiment that children who have read fairy stories were more often sorry for cruelty than those who had not. As to fears, there are, I think, some cases of children being dangerously terrified by some fairy story. Often, however, this arises from the child having heard the story once. Familiarity with the story by repetition turns the pain of fear into the pleasure of a fear faced and mastered.There are also people who object to fairy stories on the grounds that they are not objectively true, that giants, witches, two-headed dragons, magic carpets, etc. do not exist; and that, instead of being fond of the strange side in fairy tales, the child should be taught to learn the reality by studying history. I find such people, I must say so peculiar that I do not know how to argue with them. If their case were sound, the world should be full of mad men attempting to fly from New York to Philadelphia on a stick or covering a telephone with kisses in the belief that it was their beloved girl-friend. No fairy story ever declared to be a description of the real world and no clever child has ever believed that it was.

The advantage claimed for repeating fairy stories to young children is that it ().

A. makes them less fearful

B. develops their power of memory

C. makes them believe there is nothing to be afraid of

D. encourages them not to have strange beliefs

使绩效管理取得成效的关键因素是什么？