方程x2-3x+6=0与方程x2-2x-3=0的所有实数根的和是( ) A.3

题型:选择题

问题:

方程x2-3x+6=0与方程x2-2x-3=0的所有实数根的和是(  )

A.3

B.5

C.6

D.2

考点:一元二次方程根与系数的关系
题型:选择题

Do you have any problems in your life and don’t know how to be happy ? If so, you will find Being a Happy Teenager written by an Australian writer Andrew Matthews.

In his book, Matthews tells us how to have a happy life and answers the questions of teenagers. There are many subjects, such as parents and friends, and the book says we should stop being angry and should forgive (宽恕). The book tells us some useful ways, such as how to understand better what you learned. Many teenagers think that happiness comes from a good exam result or praise(表扬) from other people. But you can still be happy when there are no such “good” things.

Success comes from a good attitude (态度). If you learn from problems, you will have success in the future. Some school students have problems, such as being too tall or too short. But Matthews tells us that happiness comes from thinking in a positive (积极的) way. If you are tall, you can get a better view(视线)when you see a film; if you are short, your clothes and shoes take less room in your bedroom! This is Matthews’ most important lesson: “ You choose to be happy!”

1.What’s the name of the book written by Andrew Matthews ?

______________________________________________________________

2.What’s in Matthews’ book ?

______________________________________________________________

3.According to the paragraph 2 , where does happiness come from to many teenagers ?

______________________________________________________________

4.Is it right to think in a positive way ?

______________________________________________________________

5.What’s Matthews’ most important lesson ?

______________________________________________________________

题型:选择题

分解因式:ax2﹣2ax+a=(      )

题型:选择题

复核制度实行柜员制的,由柜员独立办理一切现金实物的收付及各类登记簿的记载,柜员必须()

A.自我复核

B.自我约束

C.自我控制

D.自担风险

题型:选择题

在临床医学研究中,可以获得意外损伤赔偿指()

A.因参加试验而意外受损伤者有权利要求获得高额赔偿

B.意外损伤者或死亡者家属有权获得因实验意外损伤而应得的公平赔偿

C.可预见的不良反应可以接受赔偿

D.死亡者家属是无权利要求获得赔偿的

E.对可预见的不良反应可以酌情给予赔偿

题型:选择题

对于无症状排阿米巴包囊者宜选用的是()

A.吡喹酮

B.甲硝唑

C.二氯尼特

D.伊维菌素

E.氯喹

更多题库