多项选择题

网架坚强，是指电网规划科学、结构合理、安全可靠、运行灵活，适应（）大规模接入，适应供用电关系灵活转换，具有强大的资源配置能力。

A.风电
B.光伏发电
C.分布式电源
D.潮汐发电

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语言是人类交流思想，沟通感情的桥梁。讲究语言美，古来有之。《礼记》说，“不失口于人”；荀子曰：“语言之美，穆穆皇皇。”都强调语言美产生的效果。常言道：“良言一句三冬暖。”如果对人说话不讲礼貌，开口带脏字，出言不逊，人与人之间思想就很难交流，感情就很难沟通。这段文字的主旨是（）。

A．语言是人类交流思想，沟通感情的桥梁
B．我国古人非常强调语言之美
C．用于沟通的语言需要讲究美
D．礼貌是沟通的前提条件
单项选择题
Medical journalsMedical journals are publications that report medical information to physicians and other health professionals.In the past, these journals were available only in print. With the development of electronic publishing, many medical journals now have Web sites on the Internet, and some journals publish only online. A few medical journals, like the Journal of the American Medical Association, are considered general medical journals because they cover many fields of medicine. Most medical journals are specialty journals that focus on a particular area of medicine.Medical journals publish many types of articles. Research articles report the results of research studies on a range of topics varying from the basic mechanisms of diseases to clinical trials that compare out~ comes of different treatments. Review articles summarize and analyze the information available on a specific topic based on a careful search of the medical literature,Because the results of individual research studies can be affected by many factors, combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing, diagnosing or treating a particular disease. Case conferences and case reports may be published in medical journals to educate physicians about particular illnesses and how to treat at them. Editorials in medical journals are short essays that express the views of the authors, often regarding a re- search or review article published in the same issue.Editorials provide perspective on how the current article fits with other information on the same topic.Letters to the editor provide a way for readers of the medical journal to express comments ,questions or criticisms about articles published in that journal.The main readers of medical journals areA．the general publicB．health professionals.C．medical critics.D．news reporters.
A.
In
B.
Medical
C.
Editorials
D.Letters
E.
The
F.the
G.health
H.
C．medical
I.
D．news
J.
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