可以听到大炮音，心率缓慢的心律失常是|

A.心房扑动

B.三度房室传导阻滞

C.尖端扭转室速

D.阵发性室上性心动过速

E.窦性心动过速

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中的语法的正确形式填空，并将答案填写在答题卡标号为16—25的相应位置上。

Last summer, I went to Hanwang, an area severely damaged during the Wenchuan earthquake. I visited some of the ______小题1:______(survive) and helped the local volunteers.

At Hanwang, there were no tall buildings and the air was very dirty and people were crowded. I lived with volunteers ___小题2:____all around China in makeshift (临时的) accommodation. They had been working there for more than six months, some giving up jobs to help with educating the kids. They never complained ____小题3:____the poor conditions that I couldn’t bear at first. Rather, they were thankful to have the chance _小题4:_____(rebuild) the damaged areas. I respected their work.

My main task was to visit some of the children__小题5:___ charity organization was supporting. One of them was disabled, having broken a leg during the earthquake. A ____小题6:____(poison) spider had bitten another girl while she ____小题7:______(live)in a tent after the earthquake. She had had to endure (忍受) the transplant of a piece of skin from one leg to the other. These children had had terrible bad luck,____ 小题8:____ they were still full of hope despite the situation. Their grades were amazingly good, ___小题9:____was one reason the charity group chose to help them. All the people I visited were grateful, not only for surviving but to the country for helping____小题10:_____.