positive: PubMed是检索全球医学文献的工具,于是乎我就用蔓越莓(cranberries)为主题词搜索了相关的文献,但是很遗憾,到目前为止,还没有检索到蔓越莓在妇科疾病上相关研究的文献,对痛经、子宫肌瘤、阴道炎都没有相关的研究数据,也就是说蔓越莓与女性月经或者疾病相关没有科学研究的数据,在检索蔓越莓的过程中,倒是发现有不少与泌尿系感染相关的研究,蔓越莓与尿路感染的研究不少。过去的研究认为蔓越莓汁可能会对反复的尿路感染有效果,但是积累的研究数据否认了这个结果,因此目前也是不推荐用于反复尿路感染的治疗的。<br>由此看来,微商宣传蔓越莓有如此神奇的功效是言过了。作为医生,我只能告诉你到目前为止,还没有研究证实蔓越莓对妇科疾病有任何相关的疗效。<br>看来不要听微商们的商业宣传,听医生们的话比较靠谱些。
negative: 英语作文开头万能句式:<br>1、Recently, the problem of … has aroused people's concern.<br>最近,……问题已引起人们的关注.<br>2、The Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.<br>互联网已在我们的生活中扮演着越来越重要的角色.它给我们带来了许多好处,但也产生了一些严重的问题.<br>3、 Nowadays, (overpopulation) has become a problem we have to face.<br>如今,(人口过剩)已成为我们不得不面对的问题了.<br>4、It is commonly believed that … / It is a common belief that …<br>人们一般认为……<br>5、Many people insist that …<br>很多人坚持认为……<br>6、With the development of science and technology, more and more people believe that…<br>随着科技的发展,越来越多的人认为……<br>7、A lot of people seem to think that …<br>很多人似乎认为……<br>8、 There are different opinions among people as to ____ .Some people suggest that ____.<br>关于……人们有不同的观点。一些人认为……<br>9、 There is an old saying______. It’s the experience of our forefathers,however,it is correct in many cases even today.<br>俗话说(常言道)……,它是我们前辈的经历,但是,即使在今天,它在许多场合仍然适用。<br>10、 Today,