的值为（）。 A．a B．π C．2a D．2π

Food is very important to our health. Everyone needs to eat well if he or she wants to have a strong body.

Our minds, like our bodies, always need the best food. This kind of food is knowledge. We start getting knowledge when we are very young.

小题1:A strong body comes from  _______.

A．health

B．good food and a healthy way of eating

C．vegetable

D．a good mind小题2:_______is necessary to our minds.

A．Knowledge

B．Food

C．Kinds of food

D．The best food小题3:We should study on our own because _______.

A．we are younger

B．we are older

C．it will bring us the most knowledge and make us learn more and understand better

D．someone is always telling us answers小题4:We enjoy learning and learn well when _______.

A．we are older

B．we are younger

C．we study in the right way and get knowledge on our own

D．we just accept(接受) answers小题5:The main idea of this passage is _______.

A．strong body

B．food

C．health

D．studying on our own

人工流产时有关宫颈裂伤的说法不正确的是（）

A.宫颈过紧易发生

B.不按顺序进行宫颈扩张易发生

C.操作用力过猛易发生

D.妊娠月份过大易发生

E.发生率较高

已知一家上市公司的资金总量为5000万元，其中长期借款1000万元，年息100万元，手续费忽略不计；企业发行总面额为500万元的5年期债券，票面利率为10%，由于票面利率高于市场利率，故该批债券溢价8%出售，发行费率为3%；此外公司发行普通股2500万元，预计第1年的股利率为12%，以后每年增长1.5%，筹资费率为1.5%；发行优先股750万元，股利率固定为15%，筹资费卒也是1.5%；公司未分配利润总额为292.5万元，该公司所得税率为40%。

该上市公司的留存收益成本为（）。

A.12%

B.13.68%

C.15.23%

D.13.5%

出版合同

首次记载用竹片夹板固定骨折的是（）。》

A.晋葛洪《肘后救卒方》

B.南齐·龚庆宣《刘涓子鬼遗方》

C.隋·巢元方《诸病源候论》

D.《吕氏春秋》

E.唐·蔺道人《仙授理伤续断秘方