问题
填空题
蓄电池“标定容量”是以标定容量十分之一的电流连续放电（）单格电池的电压降到（）所供的电量。
答案
参考答案：10h；1.7V
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蓄电池“标定容量”是以标定容量十分之一的电流连续放电（）单格电池的电压降到（）所供的电量。
参考答案：10h；1.7V
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| The books in David's schoolbag felt like bricks as he ran down the street. What he wanted to do was to play basketball with Eric, 1 his mother told him he would have to return his sister's books to the library first. He had 2 set foot in a library and he wasn't about to do so today. He would just 3 the books in the outside return box. But there was a 4 : it was locked. He went into the building, only a few minutes 5 closing time. He put the books into the return box. And after a brief 6 in the toilet, he would be on his way to the playground to 7 Eric. David stepped out of the toilet and stopped in 8 - the library lights were off. The place was 9 . The doors had been shut. They 10 be opened from the inside, he was trapped(被困) - in a library! He tried to 11 a telephone call, but was unable to 12 . What's more, the pay phones were on the outside of the building. 13 the sun began to set, he searched for a light and found it. 14 he could see. David wrote on a piece of paper: " 15 ! I'm TRAPPED inside!" and stuck it to the glass door. 16 , someone passing by would see it. He was surprised to discover that this place was not so unpleasant 17 . Rows and rows of shelves held books, videos and music. He saw a book about Michael Jordan and took it off the shelf. He settled into a chair and started to 18 . He knew he had to 19 , but now, that didn't seem to be such a 20 thing. | ||||
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