At last Bob became_____ the danger of sm

小红和小强是同班同学，他们一个是学习委员，一个是班长，都是品学兼优的学生。二人在学习和班级工作中互相欣赏，成为了好朋友。但二人由于没能把握好情感的缰绳，过早地陷入情感旋涡而不能自拔，学习成绩大幅度下降，在2008年的中考中双双名落孙山……

（1）你认为他们中考失败的原因是什么？

__________________________________________________

确定是否是动脉血的关键条件是（　　）

A．内含丰富的养料

B．内有较少的废物

C．内有丰富的氧气

D．内有丰富的氧气和养料

已知a>1，设命题p：a（x-2）+1>0，命题q：（x-1）²>a（x-2）+1。试寻求使得p、q都是真命题的x的集合。

下面关于电源分配系统卸载的说法正确的是（）。

A.由BPCU控制，卸去厨房汇流条和主汇流条的电源以防过载

B.由SPCU控制，卸去厨房汇流条和主汇流条的电源以防过载

C.由BPCU控制，卸去厨房汇流条和厕所汇流条的电源以防过载

D.由SPCU控制，卸去厨房汇流条和厕所汇流条的电源以防过载

Questions 9-13

·You will hearfive people giving reasons why children learn their mother tongue so well.
·Before you listen, read the list of statements, five of which are summaries of what they were saying.
·Then listen carefully and match the statements (A-F) with the people who said them (9-13) respectively.
·There is one extra statement that you don’t need to use. You will hear the passage twice.
9. Maggie: ______

• A. The time of their learning the mother tongue is the most
  favorable of all.
  10. Cherry: ______
• B. Children hear their native language spoken always in its
  genuine form.
  11. Mike: ______
• C. Children have private lessons all the time to learn their mother
  tongue.
  12. Hazel: ______
• D. Children hear their native language spoken in all possible
  situations.
  13. Jody: ______
• E. Children have special teachers to teach them.
• F. Children have flexible organs and sensitive ear.