若x2+ax+9=（x+3）2，则a的值为（ ） A．3 B．±3 C．6 D．

下列各组词语中，加点字的读音正确的一项是

A．祛寒（qū）晃眼（huǎng）电饭煲（bāo）如鲠在喉（gěng）

B．面糊（hù）腈纶(qíng)擂战鼓（léi）休戚相关（qī）

C．肉脯（fǔ ）猥亵（wěi ）拗不过（niù）抛头露面（lòu）

D．弓弦（xián）挫折（cuò ）潜意识（qiǎn）稂莠不齐（láng）

On a hot African morning, Leila was lying on her stomach and an elephant was walking towards her. Leila waited. Then she pushed the button on her camera. “And I got my best photo of an elephant ever, by lying under my car,” Leila explained. “I wanted to get close to the elephants, but of course this was dangerous; they had their babies with them. So every morning I used to park my car in the open near the path (小道). They used to take the same path every morning when they left the water hole. After a week, they were used to seeing my car. So the next morning, I lay under it and got my photo!”

Many of the best wildlife photos come from good planning. In Africa, photographers set up their hides (隐匿处) near water holes. They also set up hides near forest paths, as animals use the same paths every night. For bird-watching, many lakes have hides. Inside the hides, bird-watchers can watch all day in the shade (荫处) out of the wind and rain.

Good wildlife photos are needed for books, postcards, magazines and newspapers. But a success rate of 1 in 20 is good.

小题1:Why did Leila lie under her car on the stomach?

A．Because she wanted to sleep.

B．Because she wanted to take photos but was afraid of the animals.

C．Because it’s easy to see the elephants.

D．Because it’s very comfortable.小题2:How can photographers take good photos?

A．By making good preparation.

B．By going into the forest at night.

C．By walking around the holes.

D．By going to the nearest lake.小题3:What can we know from the last sentence of the passage?

A．The successful rate of taking wildlife photos is 50% at most.

B．Photographers who take wildlife photos need more practice.

C．To take good wildlife photos is not difficult.

D．It’s hard to take good wildlife photos.

城市广场绿化应( )。 Ⅰ．满足广场功能要求；Ⅱ．满足周边环境要求；Ⅲ．利于人流、车流集散；Ⅳ．满足绿化面积要求；Ⅴ．选择具有地方特色的树种

A．Ⅰ、Ⅲ、Ⅴ

B．Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ

C．Ⅱ、Ⅲ、Ⅳ

D．Ⅰ、Ⅱ、Ⅲ、Ⅴ

一壶刚烧开的水，离开火炉水就不再沸腾，要想使其继续沸腾，除继续加热外，还可以采取的措施是（ ）

A．加大壶内水面上的气压

B．减小壶内水面上的气压

C．保持壶内水面上的气压不变

D．快速把壶从低处移到高处

导游未按国家标准或行业标准的服务要求提供导游服务的，导游应赔偿旅游者所付导游服务费用的2倍。