下列选项中，不属于卵巢非赘生性囊肿的是A．黄体囊肿 B．卵泡囊肿 C．多囊卵巢 D．

某股份公司向社会发行股票和债券，股票与债券的主要区别是

A 股票是有价证券，债券仅是一种债务凭证   

B 购买者与公司的实际经济关系不同

C 股票可以流通，债券不能流通     

D 股票收益总是大于债券收益

不确定性与风险的区别不包括( )。

A．可否量化

B．可否保险

C．概率树分析

D．影响大小

白居易是唐代伟大诗人，（）均是他的代表作。

A.《长恨歌》

B.《琵琶行》

C.《行路难》

D.《春望》

A 2-year-old child is brought to the emergency room with a broken arm. Which of the following findings would lead the nurse to suspect child abuse

A．The child has bruises on the forearms.

B．The child's clothes are dirty, torn, and obviously "hand-me-downs. "

C．The child's father alters the story of the injury each time he tells it.

D．The child's mother did not come to the hospital with the child.