[多选题]加热器内缓冲挡板的作用是（ ）。
A.均布蒸汽
B.水路逆止
C.防止入口处管束被冲蚀
D.隔绝空气

[单选题]ADA004422
线路速度100km/h，采用反向曲线变更线间距可不设缓和曲线的最小圆曲线半径为(???)。
A.4000m
B.5000m
C.10000m
D.12800m

[单项选择]Why can’t Professor Hill answer her questions now
A. He doesn’t have time.
B. It’s not his office hour.
C. He is too tired after class.
D. He will only be available in the afternoon.

[单项选择]It is astonishing that a person of your intelligence ______ be cheated so easily.
A. could
B. should
C. might
D. would

[单选题]“开始通过对自己、他人、环境、社会的综合认识，调整自己的行为”，属于哪一行为发展阶段的主要表现
A.被动发展阶段
B.主动发展阶段
C.自主发展阶段
D.巩固发展阶段
E.自我发展阶段

[简答题]焙烧填充料的作用是什么？

[判断题]民间性的组织和社团大量出现，有利于沟通人际关系，丰富人们生活，应任其自由发展，不会产生任何消极的社会影响。

[填空题]院门处设置门岗警卫人员,对于妨碍执勤的行为,应当予以（ ）。

[判断题]针对园区、工业企业、公共建筑、商业综合体等10kV及以上高压客户，制定客户能源信息数据接入和用能信息普查方案。
A.正确
B.错误

[单项选择]牛钼中毒引起代谢紊乱的元素是（）
A. 铜
B. 铁
C. 锰
D. 锌
E. 钴

[单项选择]有人说，学文言文对学生作文有帮助，不但没有坏影响，不会“不文不白”，倒大有好处：点缀一点文言词语，套用一些文言句法，很有滋味。听口气，大有非此不可的味道，虽然没有说得这样明白。当然，我不否认学习文言文在一定程度上对白话文的写作有帮助，帮助表现在两个方面：篇章和语言。这也可以说是对现代作家的一种批评。为什么这些不能从现代作品中学到，还要到老祖宗那儿去讨救兵呢 下面对文段中画线句子的意思理解正确的一项是( )。
A. 现代作家应该受到批评，因为他们滥用文言词语，影响不好
B. 现代作品在篇章和语言方面未经时间的筛选，不如古代作品
C. 学习写白话文而必须求助于文言文，说明某些现代作品的不足
D. 白话文没有滋味，虽然没有明说，实际上是对他们的一种批评

[多项选择]抽样调查必须解决的问题是（）。
A. 确定几率与方差
B. 确定方法
C. 确定样本大小
D. 判断误差

[单项选择]Tax collectors ________.
A. tried to collect more money than the ruler asked for
B. were given some silver and gold coins by the ruler
C. were excused from paying income tax
D. enjoyed being invited to dinner at the ruler’’s palace

[单项选择]

Christmas Eve arrives at my house each year. The center of the celebration is dinner. My mother spends days preparing a rich variety of seafood. The guest list seldom changes. It is made up of my aunt, Marcy and her husband, my oldest brother, Sal, his wife, and their four children, my sister, Joann, her husband, and their two children, and my second brother, Richard, his wife, and their two children.
My aunt and uncle always come heavily loaded with enough food and wine for a whole army. My brother Sal and the gang usually show up an hour early and empty-handed. Joann’s family is usually late while Richard’s group generally arrives on time, bearing gifts for everyone. I am in charge of getting the Christmas tree. Plenty of food is served at the dinner table, and all the hours of preparation are wolfed down in a matter of minutes. Along with the yearly repeated menu comes the yearly repeated conversation.
Everyone talks about how good th
A. The rest of the guests.
B. Sal’s family members.
C. The writer and her mother.
D. The children of the guests.