杨教授编著教材1本，2007年2月出版，获稿酬8000元。因市场需要2008年1月再

下列关于鸟的生殖和发育的叙述中，不正确的是（　　）

A．鸟卵外面有卵壳，卵壳里面紧贴卵壳膜，它们起保护作用

B．胚盘是进行胚胎发育的部位

C．胚胎发育所需要的营养物质和水分由卵黄和卵白供给

D．一般来说，鸟卵的体积越大，孵化期越短；反之，则孵化期越长

综合课程

能说明人体血液具有防御保护功能的是

①某些血浆蛋白具有免疫作用 ②某些白细胞能吞噬病原体和坏死组织细胞 ③血液将药物运输到全身起治疗作用 ④伤口处凝血反应防止出血和病原体侵入[ ]

A．①②③

B．②③④

C．①③④

D．①②④

语法填空

     I was always told that the three Ps,patience,positive thinking and perseverance,were a sure path

1.________success.But this advice does not always work as planned.My high school maths exam is one

example.The exam,2.________was originally to be held in our classroom,3.________(change) to the

library at the last minute.This,4.________,didn't bother me because maths had always been my strongest

subject.I patiently walked to the library,took my seat and did some deep breathing to help relax

5.________.But my mood changed quickly when I saw the first question.I had no idea how to do it.I tried to stay 6.________(positive) and persevered 7.________I finally found the solution.With the problem

8.________(solve),I felt proud of my achievement.9.________(fortunate),I then noticed that I had just

10 minutes left 10.____ (complete) the rest.

社会抚养费分期缴纳的期限不得超过（）年，第一年不得低于征收额百分之（）。