下列实验操作中，正确的是

等边△ABC的三条内角平分线交于点O，则△ABC绕点O至少旋转______度，就能和原来的三角形重合．

在炎热的夏季，下列何种化学物，经日光照射，可发生光化学烟雾

A．氰化物和一氧化碳

B．二硫化碳和硫化氢

C．氮氧化物和烃类

D．二氧化碳和氯化氢

E．二氧化碳和二氧化硫

I am a long distance runner. When I was thirty-one, I was in a serious car accident. The doctor told me that they would try to get me to walk “normally” but I would never run again—terrible news for someone who views running as the oxygen(氧气) she breathes. The doctors were right. For the next nine and a half years, I was unable to run more than twenty-five feet.

In 2006, I began self-training to take part in a 60-mile walk. Three months into preparing, I realized that walking 4-5 hours a day was too long. If only I could jog(慢跑) part of it—that would cost me less time. I started jogging without my knees aching. Slowly, I increased the distance. The doctor were proved wrong—it only took nine and a half years to do so.

While practicing, I suffered a loss—a dear friend suddenly died. His work had been to help women to accept themselves and reach their fullest potential(潜力). He believed that people should let nothing hold them back from achieving their goals. Soon after his death, a crazy thought entered my mind: what if I could run the LA Marathon? I knew that if I didn’t train to my fullest, the doctor would win. So I trained seven days a week. And I succeeded in crossing the finish line of the LA Marathons all over the United States to the astonishment of my doctors. They never believed that I would achieve that.

The aches and pains I experience while training and racing are nothing compared to the suffering people whom I respect must accept.

小题1:What can we learn about the author from Paragraph 1?

A．She didn’t believe what the doctor said.

B．She often felt it was hard to tolerate.

C．She loved running very much.

D．She lost heart after the accident.小题2:The author tried jogging because she wanted to ______.

A．save some time

B．protect her feet

C．get more exercise

D．catch up with others小题3:Why did the author decide to join in the marathon?

A．Because she was so sorry for the loss of a friend.

B．Because she was encouraged by her dead friend’s words.

C．Because she wanted to prove the doctors were wrong.

D．Because she wanted to make more friends.小题4:What does the underlined word “astonishment” in Paragraph 3 mean?

A．Surprise.

B．Sadness.

C．Disappointment.

D．Anger.

下列各句中加粗成语使用恰当的一项是[ ]

A ．现在，腐败这股“支流”已经发展到了十分严重的地步，让舆论对腐败缄默或轻描淡写，写些粉饰太平的文章，必然会削弱传媒的作用。

B ．他虽然劣迹斑斑，但瑕不掩瑜，我们还应该看到他有好的一面。

C ．陈水扁一心想搞台独，这种危言危行令国人唾弃。

D ．这家商店原本门庭若市，现在却门前冷落，惨淡经营，濒临破产。

某实施监理的工程项目，在承重结构混凝土施工前，负责见证取样的监理工—程师通知总监理工程师在施工现场进行了混凝土试块的见证取样，由承包单位项目经理对送检样品进行加封后，由监理工程师送往试验室。试验室经试验后，出具了一式两份的试验报告，分别交由承包单位和建设单位保存，在见证取样的当月进度款支付申请中，承包单位将见证取样的试验费用加入工程进度款中，要求一并支付。