阿片受体阻滞剂是（）。 A.喷他佐辛 B.罗通定 C.曲马多 D.芬太尼 E.纳洛酮

（1）有一瓶被漂白过的品红试液，甲同学认为是被Cl₂漂白，乙同学则认为是被SO₂漂白了，请用简单的实验方法判断出到底哪位同学的猜测是真的______．

（2）25℃时，0.1mol•L^-1的醋酸溶液的pH约为3，向其中加入醋酸钠晶体，等晶体溶解后发现溶液的pH增大．对上述现象有两种不同的解释：甲同学认为醋酸钠水解呈碱性，[OH^-]增大了，因而溶液的pH增大；乙同学认为醋酸钠溶于水电离出大量醋酸根离子，抑制了醋酸的电离，使[H⁺]减小，因此溶液的pH增大．

①为了验证上述解释哪种正确，继续做如下实验：向0.1mol•L^-1的醋酸溶液中加入少量下列物质中的______（填写编号），然后测定溶液的pH．

A、固体CH₃COOK      B、固体CH₃COONH₄

C、气体NH₃            D、固体NaHCO₃

②若甲同学的解释正确，溶液的pH应______；若乙同学解释正确，溶液pH的值应______填（“增大”、“减小”或“不变”）

Paula and Rory have fives kids, three dogs, and a rabbit. When the house is very noisy, Megan, one of the children, is quietly inventing. A year ago, the 10-year-old had to design an anti-smoking poster, she came up with the idea of creating something that shows the average amount of tar(尼古丁) a smoker collects from just four packs of cigarettes.

“I like people to play with things more than read and write,” she says. So she researched her idea on the Internet, found a company in China that could make it, saved up her pocket money and got her idea made.

Paula says her daughter “think differently”: Ideas jump into her mind. After she got sunburnt on holiday, Megan invented a small plastic bracelet(手镯) that changes colors in the sun, telling you when to put on sunscreen(防晒霜). Several sunscreen companies have expressed an interest in the idea. She also came up with an idea to make a ball filled with water to stop the dog from feeling thirsty. “But we didn’t do anything with it,” says Paula.

Then she pulls out a picture of a special fishing rod(钓鱼竿) she had designed. “There is a camera on the hook(钩),” she explains, “and the screen is on the handle, and it shows if you’ve caught a fish or not.”

Megan doesn’t want to go to university. She keeps her pink-and -cream bedroom tidy. Paula is amazed and a bit confused by her daughter. “Everything has to be in a certain order,” Paula says. “Her brothers and sisters go with the flow, but with Megan, it’s ‘What time will that be happening?’ or ‘Where am I being picked up from today?’”

小题1:From Paragraph 2, we can infer that Megan             .

A．is not willing to go to school

B．likes to play with her brothers and sisters

C．prefers making something by herself

D．is good at reading and writing小题2:What did Megan invent after she got sunburnt on vacation?

A．The anti-smoking poster

B．The ball providing water for thirsty dogs

C．The fishing rod telling whether you’ve caught a fish

D．The bracelet telling when to put on sunscreen小题3: The underlined phrase “go with the flow” probably means “            .”

A．do what the most people usually do

B．follow the fashion closely

C．set an example to others

D．do something differently from others小题4:According to the passage, which of the following about Megan is true?

A．She has fives kids, three dogs, and a rabbit.

B．She designed an anti-smoking poster when she was nine.

C．She founded a company in China to get her idea made.

D．She invented a small plastic bracelet to change the color of sunscreen.小题5:The passage is mainly about             .

A．how Megan helps people give up smoking

B．a little girl’s dream to be a world-famous inventor

C．a 10-year-old inventor’s story

D．Megan’s relationship with her family members

外商直接投资促进了我国对外贸易发展表现在哪几个方面（）。

A、促进对外贸易规模的迅速扩大

B、优化了对外贸易商品结构

C、促进了我国对外贸易方式的多样化

D、推动了我国外向型经济的发展

E、拓宽了对外贸易市场

审计对控制的监督，即对各项内部控制（）的监督检查。

A、设计的有效性

B、职责及其履行情况

C、设计、职责及其履行情况

D、责权利的到位情况

根据企业所得税法的规定，扣缴义务人每次代扣的税款，应当自代扣之日起（）日内缴入国库