在某温度下,将H2和I2各0.10mol的气态混合物充入l0L的密闭容器中,充分

题型:填空题

问题:

在某温度下,将H2和I2各0.10mol的气态混合物充入l0L的密闭容器中,充分反应,达到平衡后,测得c(H2)=0.0080mol/L。则,氢气的转化率为        ;该温度下,反应的平衡常数为            ;已知该反应为放热反应,当降低温度时,反应的平衡常数会         (填“变大”、“变小”或“不变”)。

考点:化学平衡的有关计算影响化学平衡的因素达到化学平衡的标志化学平衡常数
题型:填空题

反映计划生育工作水平的指标有()

A、计划生育率、多孩率

B、计划生育政策法规群众知晓率

C、婴儿出生缺陷发生率

D、群众满意率

题型:填空题

宫颈癌的好发部位是

A.宫颈阴道部鳞状上皮

B.宫颈管柱状上皮

C.宫颈鳞一柱上皮交界处

D.宫颈管腺上皮

E.宫颈鳞状上皮增生区

题型:填空题

第三部分      阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

Andy rode slowly on his way to school, day-dreaming about the fishing trip that his father had promised him. He was so busy dreaming about all the fish he would catch that he was unaware of everything else around him.

He rode along until a strange around drew him to the present. He came to a stop and looked curiously up to the heavens. What he saw shocked him. A huge swarm of bees filled the sky like clack cloud and the buzzing mass      towards him.

With no time to waste. Andy sped off in the opposite direction, riding furiously without knowing how to escape the swarm. With a rapidly beating heart and his legs pumping furiously, he sped down the rough road. As the bees came closer, his panic increased. Andy knew that he was sensitive to bee stings(蜇). The last sting had landed him in hospital—and that was only one bee sting! He had been forced to stay in bead for two whole days. Suddenly, his father’s words came to him. “When you are in a tight situation, don’t panic. Use your brain and think your ways out of it. ”

On a nearby hill, he could see smoke waving slowly skywards form the chimney of the Nelson family home. “Bees don’t like smoke,” he thought. “They couldn’t get into the house.”Andy raced towards the Nelson house, but the bees were gaining ground. Andy knew be could not reach the house in time. He estimated that the bees would catch up with him soon.

Suddenly, out of the corner of his eyes, he spotted a small dam used by Mr. Nelson to irrigate his vegetable garden. Off his bike and into the cool water he dived, disappearing below the surface and away from the savage insects. After holding his breath for as long as he could, Andy came up for air and noticed the bees have gone. Dragging himself out of the date, he struggled up the hilly slope and rang the doorbell. Mr Nelson took his inside and rang his mother.

“You’ll really need that fishing break to help you recover,”laughed his mother with relief. “Thank goodness you didn’t panic! But Andy did not hear her. He was dreaming once again of the fish he would catch tomorrow. ”

1. Why did Andy fail to notice the swarm of bees earlier?

A. He was riding to school.

B. He was listening to a strange sound.

C. He was going fishing with his father.

D. He was lost in the thought of the fishing trip.

2. Which of the following is NOT mentioned about the swarm of bees in the passage?

A. They crowded like a black cloud.

B. They shocked and terrified Andy.

C. They tried to attack Andy in a mass.

D. They made Andy stay in hospital for two days.

3. How did Andy avoid the bees in the end?

A. He asked Mr. Nelson in help.

B. He hid himself under the water.

C. He rushed into the Nelson house.

D. He rode off in the oppossnte ditcction.

4. Which of  he tollowing can best describe Andy’s escape from the becs?

A. No pain no gains.

B. Once bitten, twice she

C. Where there is a will, there is a way.

D. In time of danger, one’s mind works fast.

题型:填空题

“可执行的运算及运算的次序来描述计算过程”是______语言的特点。

A.逻辑式
B.函数式
C.交互式
D.命令式(过程式)。

题型:填空题

由巴西、()、印度和中国组成的“金砖四国”2008年11月7日在巴西圣保罗举行财政部长会议,呼吁改革国际金融体系,使之能够正确反映世界经济的新变化。

A.美国

B.韩国

C.俄罗斯

D.新加坡

更多题库