小儿支气管异物时，为防止异物变位而发生急性喉梗阻，最重要的护理措施是（）。 A.吸氧

Grandfather was an elder Cherokee Native American who had a wrinkled, nut brown face and kind dark eyes．His grandson often came in the evening to sit on his knee and asked the many questions that children asked．

One day the grandson came to his grandfather with a look of anger on his face and the following story．"Father and I went to the store today and because I helped him, he bought me a present, a jack-knife．I went outside to wait for father and to admire my new knife in the sunlight．Some town boys came by and saw me．They surrounded me and started saying bad things．They called me dirty and stupid and said that I should not have such a fine knife．The largest of these boys pushed me back and I fell over one of the other boys．I dropped my knife and one of them picked it up and they all ran away laughing．I hate them．I hate them all．”

The elder Cherokee, with eyes that had seen too much, lifted his grandson's face so his eyes looked into the boy's face．Grandfather said, " Let me tell you a story．I, too, at times, have felt a great hate for those who have taken so much with no sorrow for what they do．But hate wears you down and does not hurt your enemy．It is like drinking poison and wishing your enemy would die．I have struggled with these feelings many times．It is as if two wolves are inside me．．．It is a terrible fight．

One wolf is good and does no harm．He lives in harmony with all around him and does not take offense (冒犯) when no offense is intended．It will only fight when it is right to do so and in the right way．This wolf stands for joy, peace, love, hope, sharing, modesty, kindness, friendship, sympathy, generosity, truth and faith．

The other wolf is full of anger．The smallest thing will set off his fiercest temper．He fights everyone, all the time, for no reason．He cannot think because his anger and hate are so much．

It is helpless anger, for his anger will change nothing．This wolf represents fear, envy, greed, self-pity, guilt, lies, false pride and superiority．

Sometimes, it is hard to live with these two wolves inside me for both of them try to control my mind．This same fight is going on inside you and inside every other person too．"

The boy looked into his grandfather's eyes and asked, "Which wolf will win?" The old Cherokee simply replied ．．．

"The one you feed．"

小题1:The boy was angry because ______.

A．he was not satisfied with his present

B．his back was badly injured in a fight

C．he had waited for his father for too long

D．his jack-knife had been taken away by some boys小题2:The angry wolf would probably be described as ______.

A．aggressive(好斗)

B．sympathetic

C．modest

D．unsuccessful小题3:We can learn from the third paragraph that ______.

A．"hate" is healthy

B．"hate" hurts oneself

C．"hate" is complicated

D．"hate" harms one's enemies小题4:What did Grandfather mean by saying "The one you feed" in the last paragraph?

A．We should feed the two wolves equally．

B．Living in harmony with others is important．

C．Our feelings should be expressed at the right time．

D．The choices we make determine who we will become．

电子政务建设的本源和宗旨是( )。

A．发展电子民主
B．提供更好的公共行政服务
C．促进国家信息化建设
D．关注弱势群体

寒湿泄泻宜选用何方治疗

A．保和丸
B．葛根芩连汤
C．藿香正气散
D．参苓白术散
E．四神丸

“一带一路”在投资贸易中要突出生态文明理念，加强生态环境、生物多样性和应对气候变化合作，共建（）丝绸之路。

A、生态

B、环保

C、低碳

D、绿色

背景

某公路施工企业承接了一段长3km的山区二级公路施工任务，其中有一座长220m的双车道隧道。隧道进口洞顶覆盖层较薄，隧道出口和路堑地段受落石和坍方危害。隧道进出口均设置10m的拱式明洞。其中进口段的路堑对明洞无偏压，出口段的路堑对明洞有偏压。
隧道开挖后，在岩体松散破坏之前，及时修筑了一层柔性薄壁衬砌(第一次衬砌)。通过施工中的监控量测，确定围岩变形稳定之后，修筑防水层及进行第二次衬砌，合同段还有一座长20m的预应力钢筋混凝土简支梁桥，采用明挖扩大基础，上部构造采用满堂支架施工，后张法预制梁施工工艺。支架进行了预压，且地基与支架的强度、刚度、稳定性均满足要求。部分梁体在预应力施加完毕后，出现预应力筋松弛及应力值达不到设计值的现象，通过分析，主要原因是锚具有滑丝、钢绞线内有断丝、量测表具数值有误、实际张拉值偏小。还发现三片梁体出现了构造裂缝，分析发现用于这几片梁的部分水泥受潮、部分骨料风化、模板有移动鼓出现象、部分对拉螺栓有滑丝现象。
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问题

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针对预制梁预应力损失过大的情况，应采取的措施有哪些