有关OB的描述错误的是（）

[单选题]下列有关蛋白质的叙述中，不正确的是（）

[问答题]Practice 7　　A major source of anxiety about the future of the family is rooted not so much in reality as in the tension between the idealized expectation in the culture and the reality itself. Nostalgia for a lost family tradition, which, in fact, never existed, has prejudiced our understanding of the conditions of families in contemporary society. Thus, the current anxiety over the fate of the family reflects not only problems in the family but also a variety of fears about other social problems that are eventually projected onto the family.　　The real problem facing American families today are not symptoms of breakdown as is often suggested; rather, they reflect the difficulties of adaptation to recent social changes, particularly to the loss of diversity in household membership, to the reduction of the variety of family functions and, to some extent, to the weakening of the family adaptability. The idealization of the family as a refuge from the world and the myth that the work of mothers is harmful has added considerable strain. The continuous emphasis on the family as a universal private retreat and as an emotional haven is misguided in light of historical experience.

[单选题]下列哪个缩写是微软提供的C++语言的帮助库（）。

[判断题]借款人应当是经工商行政管理机关（或主管机关）核准登记的企（事）业法人、其他经济组织、个体工商户或具有中华人民共和国国籍的自然人。

[单选题]决定传染病病人隔离期限长短的主要依据是（）

[填空题]TPDS设备技术性能中最大轴重是（）；适应列车运行速度范围是（）km/h。

[多选题]下列交易或事项产生的现金流量，属于投资活动产生的现金流量的有（　　）。

[单选题]在脑脊液检查中，鉴别结核性脑膜炎和病毒性脑炎最有意义的项目是（）

[单选题]《传染病防治法》规定，传染病暴发、流行时，县以上地方人民政府应当（）

[单选题]患者经前发热，腹痛，经色紫暗，夹有血块；尖边有瘀点，脉沉弦数。其证候是（）