问题
填空题
塞尺可以组合使用但总的不超过（）。
答案
参考答案：四片
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塞尺可以组合使用但总的不超过（）。
参考答案：四片
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| American schools begin in September after a long summer holiday. There are two terms in a school year. The first term is from September to J 1 , and the second is from February to June. Most American c 2 begin to go to school when they are five years old. Most students are seventeen or eighteen years old w 3 they finish high school. 1._____ 2._____ 3._____ |