题目内容

长期服用异烟肼的结核病患者应同时服用

A. 维生素A和维生素B1
B. 维生素B2和维生素C
C. 维生素B6和维生素PP
D. 维生素B12和泛酸
E. 维生素K和泛酸

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下列关于嘧啶分解代谢的叙述中正确的一项是

A. 产生尿酸
B. 引起通风
C. 产生尿囊酸
D. 需要黄嘌呤氧化酶
E. 产生氨、CO2和β-氨基酸

分子中既含有硫也含有氨基的维生素是

A. 维生素PP
B. 维生素B2
C. 维生素B12
D. 维生素B1
E. 维生素B6

当血浆[HCO3ˉ]增加时,会出现的情况是

A. 结合钙浓度降低,离子钙浓度升高
B. 结合钙浓度升高,离子钙浓度降低
C. 结合钙浓度、离子钙浓度都升高
D. 结合钙浓度、离子钙浓度都降低
E. 结合钙浓度、离子钙浓度不变

The estimates of the numbers of home-schooled children vary widely. The U. S. Department of Education estimates there are 250,000 to 35,000 home-schooled children in the country. Home-school advocates put the number much higher -- at about a million.Many public school advocates take a harsh attitude toward home schoolers , perceiving their actions as the ultimate slap in the face for public education and a damaging move for the children. Home schoolers harbor few kind words for public schools, charging shortcomings that range from lack of religious perspective in the curriculum to a herdlike approach to teaching children.Yet, as public school officials realize they stand little to gain by remaining hostile to the home-school population, and as home schoolers realize they can reap benefits from public schools, these hard lines seem to be softening a bit. Public schools and home schoolers have moved closer to tolerance and, in some cases, even cooperation.Says John Marshall, an education official, "We are becoming relatively tolerant of home schoolers "The idea is, "Let’s give the kids access to public school so they’ll see it’s not as terrible as they’ve been told, and they’ll want to come back." Perhaps, but don’t count on it, say home-school advocates. Home schoolers oppose the system because they have strong convictions that their approach to education -- whether fueled by religious enthusiasm or the individual child’s interests and natural pace -- is best."The bulk of home schoolers just want to be left alone, "says Enge Cannon, associate director of the National Center For Home Education. She says home schoolers choose that path for a variety of reasons, but religion plays a role 85 percent of the time.Professor Van Galen breaks home schoolers into two groups. Some home schoolers want their children to learn not only traditional subject matter but also "strict religious doctrine and a conservative political and social perspective. Not incidentally, they also want their children to learn -- both intellectually and emotionally -- that the family is the most important institution in society."Other home schoolers contend "not so much that the schools teach heresy (异端邪说) , but that schools teach whatever they teach inappropriately," Van Galen writes. "These parents are highly independent and strive to ’ take responsibility’ for their own lives within a society that they define as bureaucratic and inefficient." Home-school advocates are of the opinion that ()

A. things in public schools are not so bad as has often been said
B. their tolerance of public education will attract more kids to public schools
C. home schooling is superior and, therefore, they will not easily give in
D. their increased cooperation with public school will bring about the improvement of public education

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