问题
单项选择题
舵机浮动杆控制机构反馈杆受拉力作用时储能弹簧（），反馈点至舵杆距离（）。
A、受压，变长
B、受压，变短
C、受拉，变长
D、受拉，变短
答案
参考答案：A
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舵机浮动杆控制机构反馈杆受拉力作用时储能弹簧（），反馈点至舵杆距离（）。
A、受压，变长
B、受压，变短
C、受拉，变长
D、受拉，变短
参考答案：A
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| It was past 10:00 p. m. I was busy with my schoolwork though I was 1 . Just then, my little brother Michael ran out of his room, 2 a pen in his right hand and a piece of paper in the other. "Betty, can you help me with my 3 for school? It's about the seven 4 of the world." he said. My eyes were so fixed on the computer screen that my brother had to pull my blouse just to get my 5 . "Look, not right now! I'm very busy." I said."You are always busy! You are always like that!" he replied. I felt a bit guilty (内疚的) 6 I thought about his words, but my work seemed more 7 to me than my brother's. I sighed a few times and 8 with my own studies. The next day, I arrived home late. Michael came into my room. "I know you are 9 but there's something I want to show you," he began. Without saying a word, I 10 the paper from him.I really didn't 11 what he was saying. 12 I wanted was to get rid of him and finally get to rest. Suddenly, my eyes widened in 13 . There, he wrote: The Seven Wonders of the World: 1.Love 2. Friendship 3. Peace 4. Joy 5. Wisdom 6.Fun 7. Family I 14 believe what my brother had written on the paper. I was completely 15 . How could such an innocent (天真的) little child 16 such things in life? The most 17 things in life are the ones that we 18 take for granted (认为……理所当然). These things don't take the form of big houses or beautiful 19 . The most wonderful things in the world are immaterial (非物质的) 20 they can never be developed by human art, skill or effort. | ||||
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