受害人对损害的发生也有过错的，（）侵害人的责任。 A.可以减轻 B.可以免除 C.不

根据下列句子所给汉语注释或上下文，写出空缺处各单词的正确形式。

1. They flew to Scotland in a balloon _______ (成功).

2. It's every _______ (市民) duty to keep our neighborhoods clean and tidy．

3. Do the clothes need _______(熨烫)?

4. We can see many dead fish in the _______ (污染)  river.

5. If the heavy rain _______( 继续) to fall, the small village will be in danger.

6. Would you like to see the maple (枫树) _______ (叶)  in Hongmei Park ?

7. All of the students were excited about Yao Ming's _______ (到达).

8. —Just now a car was out of  _______ and hit a tree by the road.

    — Bad luck!

9. Tim and I are good friends, and we keep our secrets to _______.

10. —Could you tell me the _______ of  the building?

      —It's  about 1000 metres tall. There are 30 floors in all.

已知x₁，x₂是关于x的一元二次方程x²-（m-1）x-（m-1）=0的两个解，设y=f（m）=（x₁+x₂）²-x₁x₂，求函数y=f（m）的解析式及值域．

用所给单词的适当形式填空

小题1:I have two new         (watch).

小题2:The     (radio) are new.

小题3:—Is that your pencil? —No, it’s ________(Bob).

小题4:Kate is Mr Green’s ______ ( one )  daughter.

小题5:It’s in the lost and __________ (find) case.

全冠修复时，制备患牙使各轴面向切方向少许聚合，以多少度为宜

A．0度
B．2～5度
C．5～10度
D．10～15度
E．15～20度

千分尺和卡尺相比，（）的精确度大。