问题
单项选择题
中华人民共和国计量法规定的计量单位是（）。
A、国际单位制计量单位
B、国家选定的其他单位
C、国际单位制计量单位和国家选定的其他单位
D、制外单位
答案
参考答案：C
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中华人民共和国计量法规定的计量单位是（）。
A、国际单位制计量单位
B、国家选定的其他单位
C、国际单位制计量单位和国家选定的其他单位
D、制外单位
参考答案：C
My teeth（牙齿）screamed. I couldn’t them any longer. I finally my fear of dentists(牙医) and decided to get them fixed. But ? I was a college student(大学生) and barely（勉强） myself with part-time jobs. Maybe I could the worst one. I opened the Yellow Pages and called the first within walking distance. The receptionist（接待员）told me to come right over. I hurried across the school. I forgot the in worrying about how I would pay the . In a few minutes I was being examined by a dentist who said, “Hmm!” as he examined my teeth. “Your teeth are in bad .” “I already knew that,” I him and answered quickly to hide (隐藏) my . “But don’t worry. I’m going to fix them.” “No, you’re not. I can’t to pay you.” I started climbing out of the chair. “You’re a student at the university, aren’t you?” What did that make? “Yes...” “You’re going to graduate in a few years, aren’t you?” “I hope so.” “And then you expect to get a job, don’t you?” “That’s my .” “Well, then you’ll pay me. you concentrate (集中精力) on your classes and the dentistry to me.” I stared at him. He really it. He calmly picked up his tools and fixed my aching teeth. From that day on, I saw him every week until I had good teeth again. After graduation, I got a job and his bill in a few months. In the 40 years following, I’ve learned to call this man a “woodwork angel.” They are strangers who appear out of nowhere when I need help. sometimes they’ve rescued me danger or making a big mistake. 小题1:
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