普通凝胶状阴树脂最大弱点是易被（）污染。A、有机物 B、无机物

Mr Jackson was very angry to find the car he had had _____ yesterday broke down again.

A．to repair

B．it repaired

C．repairing

D．repaired

(17分) 阅读下列材料，回答相关问题。

蜜蜂“集体失踪”手机是祸首?

一提起蜜蜂，人们很容易想起它们在田间飞来飞去、勤劳地进行授粉的画面。然而，在美国和欧洲许多国家，目前却出现了一件奇怪的事情：大量蜜蜂神秘地“集体失踪”。

一些科学家猜测，这一罕见的现象是由人类大量使用手机等电子产品造成的。由于手机通信网络和辐射影响其导航系统，本来非常恋家的蜜蜂再也无法找到回家的路，最终选择了大批的离去。      

科学家警告说，蜜蜂的大量失踪将使人类生态系统的未来遭遇很大威胁，农作物可能因此大量减产，人类最终可能面临大规模的食物短缺。在我们吃的食物中，有大约三分之一都在某种程度上受到蜜蜂数量的影响。如果蜜蜂灭绝的话，农作物、草料将无法生长，家畜也将因此灭绝。 

人们经常引用爱因斯坦的这句名言；“如果蜜蜂在地球上消失，人类在4年左右也会全部消失。”  

结合上述材料，运用《生活与哲学》知识回答：

人类在“探索世界与追求真理”过程中，如何做到与自然和谐相处?(10分)

I was a single parent of four small children, working at a low paid job. Money was always tight, but we had a (1) over our heads, food on the table, clothes on our backs, and if not a lot, always (2) . Not knowing we were poor, my kids just thought I was (3) . I’ve always been glad about that.

It was Christmas time, and although there wasn’t (4) for a lot of gifts, we planned to celebrate with a family party. But the big (5) for the kids was the fun of Christmas (6) .

They planned weeks ahead of time, asking (7) what they wanted for Christmas. Fortunately, I had saved MYM120 for (8) to share by all five of us.

The big (9) arrived. I gave each kid a twenty-dollar bill and (10) them to look for gifts of about four dollars each. Then everyone scattered. We had two hours to shop; then we would (11) back at the "Santa’s Workshop"

Driving home, everyone was in high Christmas spirits, (12) my younger daughter, Ginger, who was unusually (13) She had only one small, flat bag with a few candies—fiftycent candies I was so angry, but I didn’t say anything (14) we got home. I called her into my bedroom and closed the door, (15) to be angry again. This is what she told me.

"I was looking (16) thinking of what to buy, and I (17) to read the little cards on the ’Giving Trees’. One was for a little girl, four years old, and all she (18) for Christmas was a doll. So I took the card off the tree and (19) the doll for her. We have so much and she doesn’t have anything. "

I never felt so (20) as I did that day.

10().

A.shopping 

B.travelling 

C.parties 

D.greetings

余弦函数的自相关函数是（）。

A.同频余弦信号

B.脉冲信号

C.偶函数

D.正弦信号

焚烧多氯联苯的焚烧炉温度应大于( )。

A．850℃

B．1000℃

C．1100℃

D．1200℃