神经胚期中胚层可分化为哪几个区域？

连铸坯缺陷可分为（）、内部缺陷和形状缺陷。

患者32岁，未避孕未孕5年。10年前结婚，婚后夫妻同居一处，感情好，性生活正常规律，每周2～3次。9年前足月顺娩一活男婴，现健在；8年前孕50天时自然流产1次，流产后无特殊不适。此后安环避孕，5年前因节育环下移行取环术，此后一直未避孕但未孕至今，现有生育要求。平素偶有下腹部隐痛不适，休息后可自然缓解。既往无传染病史、腹部手术史及其他特殊病史。13岁月经初潮，月经规律，周期30天，经期5天，经量中等，偶有痛经。男方查精液无异常。

若该患者输卵管碘油造影见宫腔形态正常，双侧输卵管全程显影，但走行稍扭曲，双侧输卵管伞端有造影剂积聚，提示双侧输卵管伞端不通、双输卵管积液，那么下一步诊断计划如何制订（）

A.监测排卵，嘱其排卵后24小时内行房

B.嘱其测基础体温，于体温升高第一天行房

C.行腹腔镜下双侧输卵管造口术，术后予输卵管通液治疗

D.行体外受精一胚胎移植术

E.行丈夫精液人工授精F.行宫腔镜检查

简述社区文化建设的意义？

The Supreme Court will hear arguments about the use of public money for the private schooling of children with special needs. It’s interesting to note what’s not at issue: namely, that when a public school system is unable to provide an appropriate education, it is obligated to pay the costs of private school. Too bad poor children don’t have that unshakable right; if they did, there would be no controversy about the District program that gives vouchers to low-income children to attend private schools.

The case to be heard by the court hinges on whether parents have to enroll a child with special needs in public school before the child can attend private school at public expense. Special-education advocates say students shouldn’t have to waste time before being placed in a setting that best suits their needs, while school boards worry about a ruling that could amount to an unfettered fight to private schooling at public expense. What strikes us about the emotionally charged debate is the acceptance by both sides that sometimes it is appropriate to use public money to pay for a child to go to a private school. So, why all the arguments about the approximately$14 million for a federally funded program that lets 1,700 D. C. students attend private schools instead of failing public schools

To hear critics of the D. C. Opportunity Scholarship Program tell it, the use of public money for private schooling is as unprecedented as it is undesirable. In addition to the billions of dollars spent annually on private school tuitions for students with disabilities, private schools get public money for books, technology and teacher training. As long as the money is seen as benefiting the child, it is considered a proper, even desirable, use of public dollars.

Don’t get us wrong. We’re not arguing for the unilateral right of parents to enroll their sons and daughters in any school they wish with the taxpayers picking up the bill. Abuse of special-education policies has contributed to increased costs that threaten to take needed money from general public education funds. Safeguards are needed. Public schools should be pressed to do a better job for students with disabilities and students without. But there are schools in Washington where statistics show that failure is almost guaranteed. If a school system can’t educate a child—whether because of acute special needs or its own historical failings—why should that child not have options for a " free appropriate public education "

What can be inferred from the arguments at the Supreme Court（）

A. Too much public money is put into the private schools for children with special needs

B. Public schools are of very poor education quality

C. People consider it is reasonable to use public money for certain students’ private schooling

D. People find it is amusing arguing about spending public money for private schooling

具有糖类反应的药物为（）

A.苯佐卡因

B.维生素C

C.盐酸麻黄碱

D.硫酸奎宁

E.布洛芬