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泄漏引发全球关注核安全。 （1）核电站提供了世界约17%的电能，核能的开发和利用，有效地缓解了化石燃料贮量不足带来的能源危机。化石燃料是指煤、 和天然气，天然气燃烧的化学方程式为 。 （2）电站爆炸的元凶是氢气，氢气爆炸必备的条件之一是 ，核电站的氢气主要来源于燃料原件上的锆（Zr）高温下与水反应，生成氧化锆（ZrO 2 ）和氢气，该反应的化学方程式为 。 （3）核电站利用核燃料铀——235发生核裂变产生的能量发电。放射性碘（ ）是核裂变产物之一。放射性碘与稳定性碘的质子数相同。 原子核内有53个质子，78个中子，关于 ，下列说法正确的是 （填序号）。 ① 原子核外电子数为78             ② 的相对原子质量约为131 ③ 放射性碘和稳定性碘属于同种元素      ④ 碘属于非金属元素 （4）通过服用稳定性碘（如碘化钾）可以预防 辐射对人体的伤害。成年人推荐的服用量为100毫克碘。某品牌加碘盐的说明如右图。若用服成年人用这种碘盐补充稳定性碘，预防 的辐射，每天需要食用该盐 kg。
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【单选题】If you are writing a paper to state the reasons why students should wear uniforms at school, which one of the following is the best thesis statement?
A.
Students should wear uniforms at school because uniforms may probably make schools safer for students, and children can focus on their studies rather than their clothes.
B.
Students should not wear school uniforms since they infringe upon students' right to express their individuality.
C.
Students should wear uniforms at school because uniforms make schools safer for students, create a "level playing field" that reduces socioeconomic disparities, and encourage children to focus on their studies rather than their clothes.
D.
School uniforms are necessary for students since they can encourage children to focus on their studies rather than their clothes.
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【判断题】If you are writing a persuasive speech, it is important to find out the audience's interest level in the topic, their knowledge, and attitude.
A.
正确
B.
错误
查看完整题目与答案
【单选题】If you are writing a paper to state the reasons why students should wear uniforms at school, which one of the following is the best thesis statement?
A.
School uniforms are necessary for students since they can encourage children to focus on their studies rather than their clothes.
B.
Students should wear uniforms at school because uniforms may probably make schools safer for students, and children can focus on their studies rather than their clothes.
C.
Students should not wear school uniforms since they infringe upon students' right to express their individuality.
D.
Students should wear uniforms at school because uniforms make schools safer for students, create a "level playing field" that reduces socioeconomic disparities, and encourage children to focus on their studies rather than their clothes.
查看完整题目与答案
【判断题】企业对经营租入和融资租赁的固定资产均不拥有所有权,所以租入时不必进行账务处理,只需在备查簿中进行登记。( )
A.
正确
B.
错误
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【单选题】()年3月18日,北京友谊宾馆,世纪互联通信技术有限公司向首都各新闻单位的记者宣布:中国内地第一笔互联网 电子交易成功。
A.
1998
B.
1000
C.
5000
D.
1600
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【单选题】下面__不是ResultSet接口的方法。
A.
next()
B.
getString(int i)
C.
getString(string str)
D.
close()
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【简答题】If you are writing to a company, the salutation should be__1__. If you are writing to a women that you do not know whther she is married or not, the salutation should be__2__. If you are writing to an...
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【判断题】If you are writing a letter of congratulations to wish your friend for his wedding, you can mention something about his previous marriage.
A.
正确
B.
错误
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【简答题】市场预测的方法有 、 、 。
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【多选题】下面( )是ResultSet接口的方法。
A.
next()
B.
close()
C.
back()
D.
forward()
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相关题目：
【单选题】If you are writing a paper to state the reasons why students should wear uniforms at school, which one of the following is the best thesis statement?
A.
Students should wear uniforms at school because uniforms may probably make schools safer for students, and children can focus on their studies rather than their clothes.
B.
Students should not wear school uniforms since they infringe upon students' right to express their individuality.
C.
Students should wear uniforms at school because uniforms make schools safer for students, create a "level playing field" that reduces socioeconomic disparities, and encourage children to focus on their studies rather than their clothes.
D.
School uniforms are necessary for students since they can encourage children to focus on their studies rather than their clothes.
查看完整题目与答案
【判断题】If you are writing a persuasive speech, it is important to find out the audience's interest level in the topic, their knowledge, and attitude.
A.
正确
B.
错误
查看完整题目与答案
【单选题】If you are writing a paper to state the reasons why students should wear uniforms at school, which one of the following is the best thesis statement?
A.
School uniforms are necessary for students since they can encourage children to focus on their studies rather than their clothes.
B.
Students should wear uniforms at school because uniforms may probably make schools safer for students, and children can focus on their studies rather than their clothes.
C.
Students should not wear school uniforms since they infringe upon students' right to express their individuality.
D.
Students should wear uniforms at school because uniforms make schools safer for students, create a "level playing field" that reduces socioeconomic disparities, and encourage children to focus on their studies rather than their clothes.
查看完整题目与答案
【判断题】企业对经营租入和融资租赁的固定资产均不拥有所有权,所以租入时不必进行账务处理,只需在备查簿中进行登记。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】()年3月18日,北京友谊宾馆,世纪互联通信技术有限公司向首都各新闻单位的记者宣布:中国内地第一笔互联网 电子交易成功。
A.
1998
B.
1000
C.
5000
D.
1600
查看完整题目与答案
【单选题】下面__不是ResultSet接口的方法。
A.
next()
B.
getString(int i)
C.
getString(string str)
D.
close()
查看完整题目与答案
【简答题】If you are writing to a company, the salutation should be__1__. If you are writing to a women that you do not know whther she is married or not, the salutation should be__2__. If you are writing to an...
查看完整题目与答案
【判断题】If you are writing a letter of congratulations to wish your friend for his wedding, you can mention something about his previous marriage.
A.
正确
B.
错误
查看完整题目与答案
【简答题】市场预测的方法有 、 、 。
查看完整题目与答案
【多选题】下面( )是ResultSet接口的方法。
A.
next()
B.
close()
C.
back()
D.
forward()
查看完整题目与答案