题目内容
李某2009年12月转让其购买的一处住房，取得转让收入50万元，缴纳相关税费5万元。已知李某于2008年以30万元购人该住房。本次转让中李某应缴纳土地增值税（）万元。
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To outsiders, Americans seem tied to the clock, which is shown in the fact that______.
张某2009年5月销售自有住房一套，其销售住房应缴纳的税金可能有（）。
根据下列文章,请回答 51～65 题。
The Placebo Effect
When scientists want to test a new dru9，they usually divide a large number of people___________ (51)two groups．One group takes the medicine and the other takes a substance___________ (52)as a placebo(安慰剂)．It may contain nothing more than sugar．The people do not know which pill they are takin9，the active one or the inactive one．In this kind of experiment，the medicine must perform___________ (53)than the placebo to prove it is effective．
Yet，people who take a placebo sometimes experience improvements in their health．This is known as” the placebo effect’ the effect of something___________ (54)is not supposed to have any effect．
Some doctors even use the placebo effect in their treatments．They might tell patients that a new drug will stop their pain．The patient does not know that the pills are___________ (55)．The patient___________ (56) the pills and later tells the doctor that the pain is gone．
Now research in Sweden suggests that placebo treatments can als0___________ (57)the emotional effects of unpleasant experiences．The effects in the brain were similar to those seen when placebos have been used to ease pain．The researchers say that in both cases expectations of improvement are a major___________(58)on the effectiveness of placebos．The new study involved a group of people who looked at unpleasant pictures，___________ (59)images of dead bodies．Predrag Petrovic of the Karolinska Institute in Stockholm led the study．The findings appeared in the publication Neuron(神经元)．
An influential study on placebos appeared in 1955．It said treatment with a placebo___________ (60)patients feel better 35% of the time．But in 200 1，Danish researchers reposed that they had examined more than 100 studies．They found___________ (61)evidence of healing as a result Of placebos．
Some researchers think a good relationship between a doctor and patient can increase the effectiveness of real medicines．In any case．Some medical researchers are against the use of___________ (62)．They think it is___________ (63)to give some people inactive substances when testing new medicines．They say it would be better to___________ (64)new drugs with existing drugs．That way, a study would show___________ (65)the new drug is more effective．
第 51 题
根据下列材料请回答 38～42 题：
第 38 题 James Connolly was accused of all "the following crimes EXCEPT
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