上述字迹色素成分转移结合纸张的方式最不耐久的是（）。 A.圆珠笔 B.油墨 C.铅笔

1.Though I haven’t met him for many years, I could r__________ him immediately when I saw him in the crowd.

2.Though he is not a n________ English speaker, he can speak English very fluently.

3 His success is b_______ on hard work but not good luck.

4 Many people are difficult to ______（恢复）from the death of a loved one the earthquake.

5 I’m afraid trouble will follow if you _______（忽视）your diet.

6 Your father is so ______（固执）- he won't listen..

7 He got a job in a foreign company after he g_________ from university.

8 I’m terribly sorry. I didn’t do it on p_______.

9 When people use words and e_________ different from the “standard language”, it is called a dialect.

10Two years ago she bought an expensive mountain bike and then she _________（说服）me to buy one.   

11 Experts _________(不同意) on how much the program will cost.     

12 Students need to learn how to _________(组织) their work.    

13 Police are trying to discover the _________(身份) of a baby found by the side of a road.   

14 Jill knows Spain really well. Perhaps she could give us a few t____ .

15 When I told her that our journey would begin at an a___________ of more than 5000 metres, she seemed to be excited about it.

下列物质的制备，符合工业生产实际的是(  )

A．将氯气通入澄清石灰水中制漂白粉

B．用离子交换膜法电解饱和食盐水制备烧碱、氢气和氯气

C．将氢气和氯气混合后点燃，产物用水吸收制备盐酸

D．将SO₂和O₂的混合气加高压后，通过接触室，制备SO₃

俄罗斯中央选举委员会7日公布总统选举正式结果，          当选俄新一届总统。[ ]

A．梅德韦杰夫    

B．久加诺夫    

C．普京        

D．普罗霍罗夫

常用填料分为哪两大类？

某厂综合车间1993年9月5日上午屋顶东半部48m长的天窗挑檐板突然塌落，砸烂屋面板42m，造成1人受伤，砸坏机床设备6台，车间部分停产。该厂综合车问于1988年竣工，1989年投入使用。该工程在设计时，挑檐板的抗倾覆安全系数小于规范规定，施工单位在施工过程中，挑檐板钢筋伸入圈梁内的锚固长度不够。另外，在1993年8月份连降暴雨，大量雨水不能及时排出，增加了挑檐板的荷载。
[问题]