工序为“试漏—脱脂—冲洗—酸洗—中和—钝化—冲洗—干燥—涂油和复位”的酸洗方法是()

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问题:

工序为“试漏—脱脂—冲洗—酸洗—中和—钝化—冲洗—干燥—涂油和复位”的酸洗方法是()。

A.槽式酸洗

B.系统循环法酸洗

C.循环酸洗

D.油清洗

考点:造价工程师建设工程技术与计量(安装)建设工程技术与计量(安装工程部分)
题型:单项选择题

小明是七年级(2)班的漫画高手,他根据身边的一个同学所发生的故事,画出了发人深思的漫画,请你看完漫画之后,运用所学知识回答下列问题。

(1)漫画中反映的是对中学生的哪些诱惑?有什么危害? 

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(2)面对以上问题,你能为同学们拒绝不良诱惑提些建议吗?

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(3)展开你的想象,画出第四幅漫画。 

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题型:单项选择题

单肺通气()
吸入氧浓度增加()
控制呼吸时增加潮气量()
控制呼吸时通气不足()
氧化亚氮麻醉后立即呼吸空气()
腹腔镜手术全麻()

A.PaCO2升高为主

B.PaCO2降低为主

C.PaO2升高为主

D.PaO2降低为主

E.PaCO2和PaO2升高

题型:单项选择题

阅读理解。

阅读下面的短文,请根据短文后的要求答题。(请注意问题后的字数要求)

     [1] Doctors may soon have some suggestions for health that even kids will like: more playtime. European

and international health experts say a new study makes the most convincing case for the benefits of children

being active. They say the research may lead to new guidelines saying youngsters aged between 5 and 16 need

to be active up to 1.5 hours a day.

     [2] Experts said the study doesn't mean children need to be on treadmills (跑步机) or in a soccer

leagues-they just need to be able to run around and play physically, even for short bursts of time.

     [3] The study looked at 1,732 9-year-olds and 15-year-olds from Denmark, Estonia and Portugal. Physical

activity was observed for four continuous days. Despite differences among the three coun- tries where children were observed, the benefits of physical activity were the same.

     [4] About 40 percent of those observed were reasonably ac- tive, while the rest were sedentary, researchers said. The study found that the benefits of physical activity applied to all children- not just to obese ( 肥胖的)

children normally thought to be at a higher risk.

     [5] While much attention has been paid to children's bad eat- ing habits,this study calls for equal weight to

be placed on activity levels.

     [6] "We don't need to be getting kids running on treadmills in the gym." said Cavil."We need to encourage

kids to play." One of the study's key findings, he explained, is that it proves the benefit of short bursts of activity, rather than a need for continuous exercises.

     [7] But _____ perhaps the greatest factor in children's physical activ- ity will be the parents themselves."It's

not just that children should be more active,it's the whole family," said Weiss."Parents should be role models."

1. What idea can we get from the researchers' finding in the pas- sage?( No more than 15words)

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2. What do you think parents should do to help their kids?( No more than 15 words)

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3. What do the children need to do to follow the doctors' sugges- tion?( No more than 15 words)

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4. Please explain the underlined word in English.( Only one word)

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5. Translate the underlined sentence in the last paragraph into Chinese.

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题型:单项选择题

不属于口腔前庭表面解剖标志的是

A.上唇系带 

B.颊系带 

C.腮腺导管开口 

D.颊脂垫尖 

E.翼下颌韧带

题型:单项选择题

幼年时期,甲状腺激素、生长激素分泌不足分别出现的症状是[ ]

A.侏儒症、呆小症    

B.呆小症、侏儒症 

C.巨人症、呆小症   

D.侏儒症、巨人症

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