碱金属在高炉生产中的危害。

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问题:

碱金属在高炉生产中的危害。

考点:炼铁工考试高炉工长考试高炉工长考试题库
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患者,男性,45岁,近半年来右下后牙遇冷水及吃甜食酸痛,咬硬物酸软无力,无自发痛。检查时可见面釉质中度磨损,牙本质外露,探针划某点感觉异常酸痛。

目前关于牙本质过敏症的发病机制的学说有()

A.神经学说

B.Miller化学细菌学说

C.牙本质纤维传导学说

D.流体动力学理论

E.蛋白溶解螯合学说

F.四联因素理论

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George Zinunerman's first court appearance before a Florida judge came on Tuesday inconnection with the shooting of 17-year-old Trayvon Martin. The case has caused a national debate in the United States about race, self-defense laws and gun control. It was the first time the public had gotten to see and hear from George Zimmerman. The judge said he had found probable cause to move ahead with the case and told Zimmerman he would be formally charged on May 29th.

Zimmerman turned himself into authorities on Wednesday night,just before special prosecutor(公诉人)Angela Corey announced the charge against him. Corey told reporters she would fight for Trayvon Martin”

"It's the victims and justice that we work tirelessly for,”Corey said

Zimmerman says he shot Martin in self-defense after spotting the teenager in a gated com-munity where Martin's father lives. He told police Martin attacked him during a conflict. The

shooting caused a national cry led by Martin's parents who insisted their son was murdered

They also accused Zimmerman of targeting their son because he was black.

"We just wanted an arrest and we got it.”Trayvon Martin's mother Fulton said.

Many in SanforD.Florida-the city where the shooting took place-welcomed the charge.

"All of us were wanting this to move on and get to this process where it is now into the justice system.”one man said

"It~long overdue(迟到的)and I am glad they decided to do something,”another said.Police did not initially charge Zimmerman with a crime because of a Florida law that says a person has a right to stand his or her ground and meet force with force. Prosecutor Coreysays,"I'm prepared to argue the issue if Zimmerman uses the self-defense law in count.”

Mark O'MarA. Zimmerman's lawyer, would not make his plan publiC. but he said hisclient(委托人)was worried about the trial. "If found guilty of the second-degree murdercharge, Zimmerman could face up to life in prison,”O'Mara said

小题1:Why did the case draw so much attention around the US?

A.Because George Zimmerman was very cruel when he killed Trayvon Martin.

B.Because Trayvon Martin's father was a famous lawyer.

C.Because the case was related with race, self-defense laws and gun control.

D.Because George Zimmerman would be sentenced to life in prison.小题2:What's Angela Corey's attitude towards this case?

A.She showed sympathy for the black people.

B.She wanted to defend justice for the victims.

C.She hated George Zimmerman very much

D.She was against self-defense.小题3:Which of the relationships is NOT true?

A.Zimmerman shot Martin during a conflict.

B.Mark O'Mara was Zimmerman's lawyer.

C.Sybrina Fulton was Martin's mother.

D.Angela Corey was the judge of the case.小题4:According to the passage, Zimmerman_

A.turned himself into authorities before he。,charged

B.was put into prison

C.shot Martin in self-defense when spotting him

D.targeted Trayvon Martin because he was black

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浇注系统的基本类型有哪几种各有何特点?

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防范估价风险的最后一道防线是( )。

A.撰写估价报告
B.审核估价报告
C.出具估价报告
D.估价资料归档

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关于IPSEC,以下说法错误的是()

A、IPSEC提供网络层之上的保护指定了在两台设备之间的一条或多条路径上IP保护的服务

B、对于IPV6的设备来说,IPSEC是可选项

C、IPV6通过AH和ESP扩展首部来实现IPSEC

D、提供的保护服务包括;访问控制、无连接的完整性,防重放攻击、机密性和数据原始验证

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