材料一    下列事件是我国两次开放的起点：1842年，中英《南京条约》规定，开放广州、厦门、福州、宁波、上海五处为通商口岸；1980年，我国政府正式确定在广东的深圳、珠海、汕头和福建的厦门设置经济特区。

材料二   下列内容是我国关税的两次调整：1843年，中英双方在香港议定新税则，新税则将中国关税税率定得很低，中国土货出口税率高于洋货的进口税率；经国务院批准，从2001年1月1日起，我国再次降低关税总水平，从16．4%调到15．3%。

材料三   下列历史事件标志着两次开放进入了一个新阶段：1895年，中日双方在马关春帆楼签订《马关条约》；2001年11月11日，在卡塔尔首都多哈举行中国加入世贸组织议定书签字仪式。

请回答：

根据短文理解, 完成下列各题。

      One day, I was cooking with my friend Sandy in the kitchen. Suddenly, Sandy cut her finger. I went to her quickly. But to my surprise, I saw computer chips in her finger.

   “Now you know my secret, you have to die!” Sandy said and picked up the knife. “No, please, Sandy. Aren't we good friends?” I shouted. But before Sandy could say anything, she fainted.

    “Oh, Sandy!” I took her to hospital in a hurry. After a doctor checked her, he said, “I'm afraid we can't help her. Why don't you take her to a robot centre?”

      I hurried to a robot centre. A few days later, Sandy was well. She asked, ”Mary, why did you save me even after I tried to kill you? ”

“Because I'm sure you are my friend. Can you tell me where you are from?” “I'm from another planet. It's far from here. Thank you, my friend Now I see how friendly people are on the earth.”

      Two days later, a UFO came and picked her up. Since then I've never seen her.

下列化学反应属于中和反应的是（　　）

​

阅读材料，回答下列问题：

    中新社广州5月29日电，中国确诊首例输入性中东呼吸综合征（又叫MERS）病例，这名韩国籍男子正在当地定点机构隔离治疗，中东呼吸综合征是由一种新型冠状病毒感染而引起的病毒性呼吸道疾病，患病后死亡率极高，该病可以通过接触或空气进行传播．目前我国已经研制出抗体，疫苗也将进入临床试验阶段，专家建议广大民众应保持良好的个人卫生习惯和环境卫生，尽量避免密切接触有呼吸道感染症状的人．

读右图，回答下列小题。