《人民解放军百万大军横渡长江》文中为什么多次出现“至发电时止”和表示具体数字的词语？
增加新闻的具体性和真实性，体现新闻的时间性和时效性，因为事件仍在发展变化，这样写可以避免作者发稿时与读者看到新闻时，事情发生变化而产生的误解。
“补钙新观念，吸收是关键”小丽的妈妈一直给她喂奶粉，可是医生说小丽患佝偻病，原因在于喂奶粉时没有喂（ ）
“戴窑中学明智”历史兴趣小组的同学准备去实地探访古代“丝绸之路”，他们不应该去的省份是（ ）
选词填空。
because, at, don't, favorite, get, go, have, lunch, on, teacher
I____ up at 7:00 and____ to school at 8:00. I____science at 9:00 and then I have math at 10:00. Math is my____ subject. I like math it's interesting. Mr. Wang is my math____. I have____ at 12:00 and then I have music at 1:00, I have history____2:00. I____like history. But I really like my art class. I have an art class at 2:00____Tuesday.
