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【简答题】
Let’s say you have a piece of wood, a nail, and hammer. Pretend the wood is a person, the nail is a mean rumor (谣言) about that person. If you hammer in the nail, you’re obviously hurting him or her. If you then pull out the nail, there’s still a hole in the wood, and the damage has been done. There are many reasons why that nail of a rumor can be so harmful. Rumors are, quite simply, a form of bullying (欺悔). When a person or a group makes up a rumor about someone or decides to spread gossip, it’s usually to hurt someone, break up a friendship, or make someone less popular. It’s the same thing as teasing, only it’s done behind someone’s back instead of to his or her face. When you spread a rumor about someone, you’re sending a signal that the person is outside of the group, and somehow less worthy of friendship than others. You’re making fun of that person or pointing out negative things about him or her. This can let others think that it’s okay to make the person feel bad, and make him or her an outsider. We need to be able to trust our friends, and gossip and rumors can break this trust. If you tell a personal secret to a friend, and he turns around and tells it to someone else, you might feel like you will get burned if you ever get close to him again. Letting a rumor influence your behavior is like letting someone else make a big decision for you. Let’s say you hear that the teacher plans to call a Snow Day tomorrow because a blizzard (暴风雪) is coming. Expecting a day off, you don’t do your homework. The next morning, the blizzard turns out to be nothing more than a drizzle(毛毛雨), and school isn’t off after all. You get zeroes on your work. 小题1:The purpose of the first paragraph is to . A.help readers know what a rumor is B.attract readers to read the following paragraphs C.emphasize the damaging effects of rumors D.explain how a rumor spreads 小题2:To tell a rumor and a tease apart, you depend on . A.whether it is done behind someone B.whether it is painful or not C.whether it is a kind if bullying D.whether it is spread fast 小题3: If a rumor is spread about someone, others may . A.point out his or her advantages B.keep away from him or her C.not feel he or she is an outsider D.be hurt if getting close to him or her again 小题4:From the last paragraph, we can infer that . A.it is hard to keep rumors a secret B.rumors can destroy your interest in learning C.believing rumors can lead to bad choices D.rumors can control your whole life 小题5:The purpose of this passage is to . A.advise on how to deal with rumors B.teach us how to judge a rumor C.find out why rumors spread fast D.explain why rumors hurt
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【单选题】(单选)如下关于流体中的分子扩散和热传导相似点的说法,错误的是()
A.
两者都是由分子热运动而引起的传递现象
B.
一般来说,气相中分子扩散系数和热导率都大于它们在液相中之值
C.
在对流传质过程,分子扩散依然存在;在对流传热过程中,热传导也依然存在;
D.
过程通量均与作为推动力的梯度成正比。
【判断题】史佚生活年代在周任、藏文仲之后()
A.
正确
B.
错误
【单选题】下列学者中,不属于二十世纪二十年代清华国学院四大导师的是:()
A.
赵元任
B.
陈寅恪
C.
梁思成
D.
王国维
【单选题】如下关于流体中的分子扩散和热传导相似点的说法,错误的是()
A.
两者都是由分子热运动而引起的传递现象
B.
一般来说,气相中分子扩散系数和热导率都大于它们在液相中之值
C.
在对流传质过程,分子扩散依然存在;在对流传热过程中,热传导也依然存在;
D.
过程通量均与作为推动力的梯度成正比。
【多选题】关于热扩散率下列说法正确的是()。
A.
定义式为
B.
是衡量材料传播温度变化能力大小的指标
C.
又被称为导温系数
D.
与运动粘度(动量扩散率)的量纲一致
【单选题】下列不属于清华国学院四大导师的是
A.
梁启超
B.
王国维
C.
章太炎
D.
赵元任
【判断题】会计开反映过去已经发生的经济活动,也可反映未来可能发生的经济活动。( )
A.
正确
B.
错误
【简答题】假定:(1)油滴为均匀对称的球体;(2)油滴随风飘动,与空气没有相对运动;(3)燃烧进行得很快,火焰面很薄;(4)油滴表面温度为饱和温度;(5)忽略对流与辐射换热;(6)忽略油滴周围的温度场不均匀对热导率、扩散系数的影响;(7)忽略斯蒂芬流。试计算火焰封面的直径、油耗量,以及油滴直径与时间的关系。
【多选题】国家对下列哪些()特殊食品实行严格监督管理。
A.
保健食品
B.
特殊医学用途配方食品
C.
老年人配方食品
D.
婴幼儿配方食品
E.
进口食品
【单选题】下列句子的文言句式与其他三项不同的一项是( )
A.
不吾知也
B.
则何以哉?
C.
加之以师旅
D.
求,尔何如?
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