下列各项中，哪一项不是深龋的临床表现A．冷热刺激痛 B．食酸甜食物敏感 C．自发痛

已知将盐酸滴入高锰酸钾溶液中，产生黄绿色气体，而溶液的紫红色褪去。现有一个氧化还原反应的体系中，共有KCl、Cl₂、H₂SO₄、H₂O、KMnO₄、MnSO₄、K₂SO₄七种物质：

(1)该反应中，化合价升高的反应物是________，化合价没有发生变化的反应物是________。

(2)写出一个包含上述七种物质的氧化还原反应方程式(需配平)___________________。

(3)上述反应中，氧化剂是_____，1 mol氧化剂在反应中______(填“得到”或“失去”)______ mol电子。

(4)如果在反应后的溶液中加入NaBiO₃，溶液又变紫红色。说出NaBiO₃的一个性质：________________。 

“This is the BBC News at Eight O’ Clock.”

…

“Chinese people spent about 120 billion yuan during the first three days of the May Golden Week last year. This year it has increased to 140 billion yuan.”

“The children of Beijing No.2 Middle School sang with students from Toronto in Canada to celebrate the 20^thanniversary. They had been sister schools since 1986. They spent about two weeks together in Beijing. They visited the Great Wall and the Summer Palace. They took a lot of photos in Beihai Park.”

“Have you ever got tired of heavy shopping bags? A new shopping assistant robot which was invented by Japanese company could be the answer. The helpful robot can follow you around and carry several bags. The robot was tested at a shopping center in February 2006. ”

“About 500 people from different countries were in the 2006 “Rock Paper Scissors(剪刀)” World Match in Canada. This event was founded in 1842. It is said playing this game is fun, and also a good way to solve problems among people.”

…

“And now it’s time for Morning Music.”

小题1:The students from Canada and Beijing No. 2 Middle School didn’t ________.

A．take photos

B．visit the Great Wall

C．visit the Summer Palace

D．have a football match小题2:This year during the first three days of the May Golden Week, it cost Chinese people ___________ yuan more than that of last year.

A．260 billion

B．120 billion

C．140 billion

D．20 billion小题3:Which of the following is not talked about in the news?

A．The robot can help with shopping bags.

B．A Japanese company invented the robot.

C．The robot was tested at a shopping centre.

D．There are such robots in people’s homes now.小题4:The underlined word “anniversary” means           .

A．founding

B．yearly return of the date of an event

C．university

D．the new beginning of something important小题5:Which of the following is a game?

A．Rock Paper Scissors

B．May Golden Week

C．Shopping assistant robot

D．A visit to the school

发生火情应如何处理？

下列X线征象，不属于法洛四联征的是：()

A．肺血减少

B．两肺门动脉细小

C．主动脉升弓部增宽、凸出

D．心脏近似靴形

E．肺动脉段-心腰部膨隆，心尖圆隆

一个生来失明的孩子不可能被培养成为一个画家。这说明了下列哪种因素对人发展的影响？（）

A.遗传

B.环境

C.教育

D.个体的主观能动性