下列挖槽方式中，不属于地下连续墙按挖槽方式分类的是（） A.桩排式 B.抓斗式 C.

硫酸工业中存在如下反应：2SO₂(g)＋O₂(g)2SO₃(g) △H<0

（1）写出该反应的平衡常数表达式_____________，升高温度平衡常数_________（填“不变”、“增大”、“减小”）。

（2）该反应达平衡后，若只增大压强，平衡将向_____________方向移动；若只升高温度，平衡向_____________方向移动。

（3）实际生产中要用过量的空气，原因是_______________；还需加入催化剂，目的是_______________；不在高温下进行该反应的理由是____________________。

以下不属于应承担缔约过失责任的情形是( )

A．假借订立合同，恶意进行磋商
B．重大误解或者显失公平
C．故意隐瞒与订立合同有关的重要事实或者提供虚假情况
D．有其他违背诚实信用原则的行为

通过第五次全国人口普查得知，山西省人口总数约为3 297万人，用科学记数法表示是______万人（保留两个有效数字）．

考核抗结核治疗效果的主要指标是

A．痰菌检查

B．胸部X线

C．体力明显恢复

D．结核中毒症状消失

E．咳嗽减轻，痰量减少

(2013·高考江西卷，A)The light from the campfire brightened the darkness，but it could not prevent the damp cold of Dennis’s Swamp (沼泽地) creeping into their bones.It was a strange place.Martin and Tom wished that they had not accepted Jack’s dare.They liked camping，but not near this swamp.

“So，”Martin asked as they sat watching the hot coals.“How did this place get its name? ”

“Are you sure you want to hear it ? It’s a scary story，”warned Jack.

“Of course！”cried out Tom.“If there were anything to be scared of，you wouldn’t have chosen this place！”

“Ok，but don’t say I didn’t warn you，” said Jack，and he began his tale.

“Way back in time，a man called Dennis tried to start a farm here.He built that cottage over there to live in.In those days，the area looked quite different—it was covered with tall trees and the swamp was a crystal­clear river.After three hard years，Dennis had cleared several fields and planted crops.He was so proud of his success that he refused to listen to advice.

“‘You are clearing too much land，’warned one old man.‘The land is a living thing.It will hit back at you if you abuse it.’”

“‘Silly fool，’said Dennis to himself.‘If I clear more land，I can grow more crops.I’ll become wealthier.He’s just jealous！’”

“Dennis continued to chop down trees.Small animals that relied on them for food and shelter were destroyed.He was so eager to expand his farm that he did not notice the river flowing slowly towards his door.He did not notice salt seeping to the surface of the land.He did not notice swamp plants choking all the native plants.”

“What happened？”Martin asked.It was growing colder.He trembled，twisting his body closer to the fire.

“The land hit back—just as the old man warned，”Jack shrugged.“Dennis disappeared.Old folks around here believe that swamp plants moved up from the river and dragged him underwater.His body was never found.”

“What a stupid story，”laughed Tom.“Plants can’t...”Before he had finished speaking，he screamed and fainted(晕倒)．The other two boys jumped up with fright，staring at Tom.Suddenly，they burst out laughing.Some green swamp ivy (常春藤) had covered Tom’s face.It was a while before Tom could appreciate the joke.

小题1:The underlined word “dare”in Paragraph 1 is closest in meaning to________.

A．courage

B．assistance

C．instruction

D．challenge小题2:Why did Jack tell Tom and Martin the story?

A．To frighten them.

B．To satisfy their curiosity.

C．To warn them of the danger of the place.

D．To persuade them to camp in the swamp.小题3:Why did Dennis ignore the warning of the old man?

A．The old man envied him.

B．The old man was foolish

C．He was too busy to listen to others.

D．He was greedy for more crops.小题4:Why did Tom scream and faint?

A．He saw Dennis’s shadow.

B．He was scared by a plant.

C．His friends played a joke on him.

D．The weather became extremely cold.小题5:What lesson can we learn from the story of Dennis?

A．Grasp all，lose all.

B．No sweat，no sweet.

C．It is no use crying over spilt milk.

D．He who makes no mistakes makes nothing.