多项选择题 在订单匹配原则方面，根据各国证券市场的实践，优先原则主要包括（）。

未知题型 Once Daily Pill Could Simplify HIV Treatment ?? Bristol-Myers Squibb and Gilead Scienceshave combined many HIV drugs into a single pill. Some- times the best medicineis more than one kind of medicine. Malaria, tuberculosis andHIV/AIDS,___________ (51), are all treated with combinations of drugs. But thatcan mean a lot of pill to take. It wouldbe _______________ (52) drug companiescombined all the medicines into a single pill, taken just once a day.?? ?? Now,two companies say they have done that for people just ___ (53) treatment for HIV, the virus that causesAIDS. The companies are Bristol-Myers Squibb and Gilead Science. They have ___________(54) a single pill that combinesthree drugs currently on the market. Bristol-Myers Squibb sells one of them___________ (55) the name of Sustiva. Gilead combined the ________________(56), Emtriva and Viread, into a single pill in two thousand four.?? ?? Combining drugs involves more than _________(57) issues. It alsoinvolves issues of competition _______(58) the drugs are made by different companies. The newonce-daily pill is the result of _________(59) is described as the first joint venture agreement of itskind in the treatment of HIV. In January the New England Journal of Medicinepublished a study of the new pill. Researcher compared its _(60) to that of the widely usedcombination of Sustiva and Combivir. Combivir ________ (61) two drugs, AZT and3TC. The researchers say that after one year of treatment, the n ew pill sup-pressed HIV levels in more patients and with fewer ________________(62)effects. Gilead paid for the study. Professor Joel Gallant at the Johns HopkinsSchool of Medicine in Baltimore, Maryland, led the re- search. He is a paidadviser to Gilead and Bristol-Meyers Squibb as well as the maker of Combivir,G1- axo Smith Kline.?? ??GlaxoSmith Kline reacted ___(63) the findings by saying that a single study is oflimited value. It says the effectiveness of Combivir has been shown in each ofmore than fifty studies. The price of the new once-daily pill has not been announced.But Gilead and Bristol-Myers Squibb say they will provide it at reduced cost todeveloping countries. They plan in the next few months to ask the United?? States Foodand Drug Administr??ation to approve the new pill.,?? ??There are limits to who could take it __(64) the different drugs itcontains. For example, __________(65) women are told not to take Sustivabecause of the risk of birth disorders. Experts say more than forty millionpeople around the world are living with HIV.51??A.thereforeB.thusC.for example D.nevertheless

单项选择题 《千金要方》和《千金翼方》是唐代以前医药成就的系统总结，首创“复方形式”，是医学史上的重大革新，其作者是（）