题目

阅读下列短文，掌握其大意，根据首字母或汉语提示，填写单词, 使句子通顺, 注意每空一词,。  Online shopping is a new _66___(方式）of shopping. It is popular among young people. It has _67___(一些）advantages.  First, we can buy ___68_ (几乎）everything on the Internet. Second, we can shop at any time. The shops are always o___69. Third, we can also find some _70_(便宜）things. And we can c___71 the prices of the same product. But online shopping is not ___72（安全的). Sometimes the __73(产品）is not very good. We can see the pictur细胞正常地完成各项生命活动的前提条件是（　　） A、具有细胞膜B、具有细胞核C、具有细胞质D、细胞结构保持完整