发生左心衰竭病人最常见症状是（） A.心悸 B.体重下降 C.呼吸困难 D.肌肉酸痛

一台抽水机7小时可以浇地196公顷，照这样计算，这台抽水机要浇336公顷的菜地，要用多少小时？

Cao Min couldn’t believe she was experiencing exactly what she had seen years ago in the film “Titanic”.

Cao and her two children from Anhui Province were traveling on board the “Liaoludu 7” on February 22. They were among the first people on the ship who were rescued by lifeboats. Cao’s one-year-old son was the youngest passenger on board.

The “Liaoludu 7” was traveling in the Bohai Straits from Lvshun in Liaoning Province to the port city of Longkou in Shandong Province. It suddenly lost its power at 2:30 pm and tilted(倾斜) on its side. With 81 people on board, the ferry began to sink.

“I was so scared that my legs couldn’t move forward. They kept shaking even when I was asked to jump onto a lifeboat,” Cao recalled.

Upon receiving the mayday appeal (紧急呼救), China Marine Search and Rescue Centre immediately informed the State Council. The center sent eight lifeboats to the fishing boats.

After more than four hours of fighting strong winds and freezing ocean water, the passengers were recovered. All but four survived. These four died after spending too long time in the freezing waters, according to a spokesperson for the Beijing-based center.

小题1:According to the passage, which of the following is TRUE?

A．The film “Titanic” had been on show again in Shanghai.

B．Cao Min and her children experienced the terrible accident.

C．“Liaoludu 7” with all passengers on board were saved.

D．The ferry began to sink on the way to the port of Liaoning.小题2:From the passage we can infer that                  .

A．China Marine Search and Rescue Centre quickly carried out the rescue task

B．the center sent eight lifeboats and asked for help from the United Nations

C．the passengers were fighting strong winds and freezing ocean water for one hour

D．the ferry sank into the sea immediately it tilted on its side at 2:30 pm小题3:According to the passage, ________ passengers on board were still alive.

A．four

B．seventy-seven

C．eight

D．eighty-one

社会救助的给付标准一般为（）。

我国学者的研究发现，在儿童的亲社会行为中，（）最为常见。

A.助人行为

B.分享行为

C.合作行为

D.安慰与保护