哪些情境因素会影响助人行为（）。 A.环境条件 B.天气情况 C.时间压力 D.他人

During all this time I never stopped thinking about escape. When I traveled across to the other side of the island (岛屿), I could see the other islands, and I said to myself, “Perhaps I can get there with a boat. Perhaps I can get back to England one day.”

So I decided to make myself a boat. I cut down a big tree, and then began to make a long hole (洞) in it. It was hard work, but about six months later, I had a very fine canoe (独木舟). Next, I had to get it down to the sea. How silly I was! Why didn’t I think before I began work? Of course, the canoe was too heavy. I couldn’t move it! I pulled and pushed and tried everything, but it didn’t move. I was very unhappy for a long time after that.

That happened in my fourth year on the island. In my sixth year I did make myself a smaller canoe, but I did not try to escape in it. The boat was too small for a long journey, and I did not want to die at sea. The island was my home now, not my prison, and I was just happy to be alive.  A year or two later, I made myself a second canoe on the other side of the island. I also built myself a second house there, and so I had two homes.

My life was still busy from morning to night. There were always things to do or to make. I learnt to make new clothes for myself from the skins of dead animals. They looked very strange, it is true, but they kept me dry in the rain.

I kept food and tools (工具) at both my houses, and also wild goats (山羊). There were many goats on the island, and I made fields with high fences to keep them in. They learnt to take food from me, and soon I had goats’ milk to drink every day. I also worked hard in my corn (玉米) fields. And so many years went by.

小题1: The purpose of making a canoe on the island was to _____________.

A．escape in it

B．get to the other side of the island

C．use it for food

D．go around the island小题2: To survive, the writer did the following EXCEPT _____________.

A．keeping goats for milk

B．making clothes from animal skins

C．working in the cornfields

D．going fishing in the sea小题3:Why didn’t the writer use his first canoe?

A．Because it was too small for a long journey.

B．Because it was too heavy to get down to the sea.

C．Because there was something wrong with it.

D．Because the writer was busy building a second house.小题4:From the story, we can learn that _____________.

A．the writer tried to make his stay comfortable on the island

B．the writer had nothing to do on the wild island

C．the writer tried to escape in the second canoe, but failed

D．the writer was in prison on the island, losing his freedom

脾胃虚弱的出血患者宜选用（）

A.槐花

B.炒槐花

C.槐花炭

D.炒栀子

E.栀子

通过半年的化学学习，我们熟悉了许多物质．下列物质中，①干冰；②二氧化锰；③氧气； ④碳酸钙； ⑤高锰酸钾；⑥水；

（1）大理石的主要成分是______ （填写物质的序号，下同）．

（2）属于氧化物的是______．

（3）用于潜水、医疗救援的是______．

（4）属于暗紫色固体的是______．

环境问题实质是发展问题。 ( )

下套管固井的井控基本要求包括哪些？（）

A.产层固井设计应有井控技术措施。

B.下套管前应压稳地层，油气上窜速度应小于10米/小时。起钻钻井液进出口密度差不超过0.02g/cm3。

C.下套管、固井施工过程应有专人坐岗观察，并控制套管下放速度。发现溢流或井漏，应停止下套管作业并进行处理，排除风险或采取可控措施后，方可进行下步作业。

D.揭开储层或非目的层揭开高压地层流体的井，下套管作业前，应更换与套管外径一致的防喷器闸板芯子并试压合格。实施悬挂固井时，如悬挂段长度不足井深1/3，则可采用由过渡接头和止回阀组成的防喷单根。使用无接箍套管时，应备用防喷单根。

E.固井和候凝过程应确保井筒液柱平衡地层压力，并专人坐岗观察；候凝时间不足，不得进行下道工序作业。