题目

 He found it increasingly difficult to read, ________ his eyesight was beginning to fail. A. though                     B. for                          C. but                                D so 答案:B张阿姨把一批牛奶装箱,这些牛奶的包装情况如下。每箱袋数是否有剩余12袋没有剩余20袋没有剩余(1)每12袋牛奶装一箱,结果没有剩余,说明牛奶的袋数是(  )的倍数;每20袋牛奶装一箱,结果没有剩余,说明牛奶的袋数是(  )的倍数。(2)这批牛奶最少有多少袋?
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