已知物质A在常温下是液体，在一定条件下，可以分解生成B和C两种气体，将D物质放在

小题1:What can you find in Parker’s Sweet Shop ?

A．Books.

B．Chocolate.

C．Pictures.

D．CDs.小题2:What time does Happy Days Club open?

A．9:00 am.

B．9:30 am

C．7:30 pm.

D．10:30 pm.小题3:What should you paint if you want to join the painting competition?

A．An egg.

B．A girl.

C．A bicycle.

D．An animal.

阅读理解。

     Welcome to Phillip Island Nature Park and the penguin Parade (企鹅列队). You will see the world's

smallest penguins- the little penguins appearing from the ocean and crossing the beach to their home in line.

It's a natural experience. Remember the Little penguins are wild. You are a visitor to their home.

     Making the most of your visit Here are some helpful hints (提示):

●The Penguins Parade last 50 minutes from the time penguins first cross the beach.

●Dress in warm clothes, for the Parade is in the open air on the beach.

●It is best to get down to the beach at least 15 minutest before the parade begins.

Protecting the Penguins

      We do have some simple rules-designed to protect the penguins and make your visit more enjoyable.

●Photography-including video cameral is not allowed. Photography during the Parades. Make sure that your

cameral is placed inside your bag, or in a bag provided, before walking down to the beach, Photographs can

be bought at proper price in the gift shop.

●Smoking is not allowed anywhere.

●And remember, the penguins are wild birds so please don't try to touch them.

1. During the Penguin Parade, people ________.

A. are allowed to smoke

B had better wear warm clothes.

C. have to hand in their bags

D. Can take photos of the penguins

2. Which of the following statements is WRONG?

A. The Little Penguins go back home in line.

B. The whole Penguin Parade lasts 50 minutes.

C. People have a chance to touch the penguins.

D. The Penguin Parade takes place on the beach.

3. The passage is written mainly to ________.

A. help make people's visit more pleasant

B. introduce the life of the Little Penguins

C. welcome people to Phillip bland Nature Park

D. encourage people to protect the Little Penguins

₁¹H、₁²H、₁³H、H⁺、H₂是…………（ ）

A．氢的五种同位素

B．五种氢元素

C．氢的五种同素异形体

D．氢元素的五种不同微粒

线迹歪斜

急性主动脉瓣关闭不全的心电图表现为（）

A.窦性心动过速和非特异性ST-T改变

B.窦性心动过缓和非特异性ST-T改变

C.房颤

D.室颤

E.窦性心动过速和特异性ST-T改变