工业生产水煤气的反应为:C(s)+H2O(g)=CO(g)+H2(g) ΔH=+

题型:选择题

问题:

工业生产水煤气的反应为:C(s)+H2O(g)=CO(g)+H2(g)  ΔH=+131.4 kJ/mol,下列判断正确的是(  )

A.反应物能量总和小于生成物能量总和

B.CO(g)+H2(g)=C(s)+H2O(g) ΔH=+131.4 kJ/mol

C.水煤气反应中,生成1 mol H2(g)吸收131.4 kJ热量

D.水煤气反应中生成1体积CO(g)吸收131.4 kJ热量

考点:能量的相互转化
题型:选择题

Michael Jordon is the greatest basketball player of all time. Once he was making a television advertisement, all he needed to do was to miss a shot.

For Michael, this was difficult. He had conditioned(定位) himself to succeed whenever he was throwing the ball. Every time he threw a basketball, it went in. Every time he tried to miss a shot, he couldn’t. In total, it took him over 20 attempts (尝试) before he missed a shot.

For Michael, success is a strong habit. It took him a lot of time to break it. Just like drinking, smoking and collecting things, success is also a habit. Once it is formed, it is difficult to break. Many people think that success is difficult to keep. They feel that it will be hard work and will need too much action and focus. The truth is that it is simply a habit, and as easy to keep as any other habit.

Spend some time making success a habit in your life. Once you have developed it, it is not something you want to change again.

小题1:In the advertisement Michael Jordon needed to ______________.

A.miss a shot

B.throw the basketball in

C.keep his habit

D.develop his skills小题2:The writer used the example of Michael Jordon to tell us ________.

A.he is the best basketball player of all time

B.he had worked very hard to be successful

C.success is a strong habit

D.success is a habit that is not difficult to break小题3:Which of the following is not the habit mentioned in the passage?

A.drinking

B.smoking

C.collecting things

D.working hard小题4:If you want to succeed , you must____________.

A.miss the shot

B.make success a habit

C.keep throwing

D.make an advertisement

题型:选择题

各种类型的生态系统的共同点(  )

A.有生产者和分解者

B.有生产者和消费者

C.有生产者、消费者和分解者

D.有消费者和分解者

题型:选择题

在棋类比赛中,比赛现场附近的讲棋室内所用的棋盘是竖直放置的,棋子可以在棋盘上移动但不会掉下来.原来,棋盘和棋子都是由磁性材料制成的.棋子不会掉落的原因是因为棋子(  )

A.受到的重力很小可忽略不计

B.和棋盘间存在很大的吸引力

C.受到棋盘对它向上的摩擦力

D.受到的空气阻力等于重力

题型:选择题

下列说法不正确的是[ ]

A、遥感感知事物时不直接接触地物

B、遥感技术是遥感信息接收与应用的过程

C、遥感获取的信息是电磁波信息

D、遥感对地面不反射或不辐射电磁波的物体无法感知

题型:选择题

男性,50岁,右腮腺区肿物3年,近半年生长加快,伴疼痛。右腮腺造影显示:腺泡不规则充盈缺损,造影剂外溢。其诊断最大可能是

A.腮腺瘘

B.涎石病

C.腮腺区恶性肿瘤

D.复发性腮腺炎

E.急性化脓性腮腺炎

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