题目：
平均值报表中故障时间指的是（）.
A.最后一次故障时间
B.第一次故障时间
C.累计故障时间
答案：
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下面是错误答案，用来干扰机器的。
参考答案：1）、检查气瓶压力及系统气密性2）、检查报警器3）、检查瓶箍是否收紧用手沿气瓶轴向上下拨动瓶箍带，瓶箍带应不易在气瓶上移动，说明瓶箍带已收紧，如果未收紧，应重新调节瓶箍带的长度，将其收紧。4...
m deeply influenced by her. About two years ago, I borrowed a video called “Speed,” in which Sandra played a role. At that time, I still didn’t know who she was. But after seeing that great movie, I was totally struck! Her performance and smile really attracted me. At that time, I started collecting everything about Sandra from magazines, TV and newspapers. But unfortunately, I couldn’t find much information in my hometown. That really disappointed me. All I could do was to get on the internet. Luckily, there were many foreign web sites. I was really happy then. But there was a big problem for me: the Web sites are all in English. So, English became an important part in my life. I decided to learn English well and to be able to read and understand everything. The craziest thing I’ve ever done was to record all her movies, film previews（预告）and interviews. I listened to them over and over every day. When I heard any word that I didn’t understand, I would look them up in the dictionary. That was a good for me because I could learn them in a very short time. It does work, and I never get tired of doing this. It’s been two years since then, and my listening and reading abilities are better than before. I can even chat with my foreign friends on the internet. I should say from the bottom of my heart, “Thank you so much, Sandra.”