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标准版 Doing Shopping Online With the development of the Internet, shopping is no longer a tiring thing. Just click your mouse to choose the articles you like, and the purchase is done. You don’t even have to step out of the room. It seems all easy and quick. However, people’s opinions vary on this trend. Some believe that on line shopping is time and money saving. With plentiful selection options, they can buy whatever they like at any time convenient. Still others insist that mis-purchasing alone is annoying enough, not to mention the credibility of the sellers and the safety of their accounts. In my opinion, the convenience and excitement of on line shopping is beyond all doubts. In the meantime, we must always bear in mind that certain traps do exist, so we’d better make sure the sellers are trustworthy before buying. In addition, we should also guard ourselves from the potential hackers who might steal our account information.
高分版 With the help of the ever rapid development of internet technology, online shopping is coming into fashion in most of cities. Online shopping is welcomed by most people due to various reasons. From the perspective of consumer, it can save some time for people who don’t have much spare time. Just click the mouse, they can get whatever they want while staying at home. For the retailers, it can cut some costs for those who don’t have much circulating funds. They don’t have to rent a house and spend money on employees compared with the traditional trade mode. However, there are still some defects in online shopping. First, lace of face to face deal makes online shopping less reliable and trustworthy. Second, people will lose the fun of bargain. It is undeniable that shopping on the internet has become an irresistible trend in modern society. It’s of great urgency that we need to regulate the relative laws accordance with the rapid growth of online shopping. Only in this way can we enjoy the pleasure and convenience of online shopping without the concern of being treated
(1)工作H的最早完成时间=12+6=18 (2)工作H的自由时差=min(22,24,26)—18=4天
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