L型布局
参考答案:
指将设备沿墙壁设置成一个犄角形,通常是煤气灶、烤炉、扒炉、烤板、炸锅等组台在一边,另一些较大的如蒸锅、汤锅等设备组台在另一边,两边相连成一犄角,集中加热排烟。
短文填空
One cold winter morning, an old woman had to s 1 for her doctor. When he came, she t 2 him that her right leg hurt, and that sometimes she could h 3 walk. She asked him what was w 4 , as she had n 5 had such feeling before.
The doctor looked her over carefully, then he said, "You are in good h 6 for a woman of your age. I think the trouble in your right leg is just a matter of old age catching up with you. We get all kinds of illness(疾病) a_ 7 we get older. The trouble will almost certainly e 8 in spring."
"I don't think so, doctor!"she said. "y left leg is w 9 and it is the s 10 age as my right leg."
1. ______________ 2. ______________ 3. ______________ 4. ______________ 5. ______________
6. ______________ 7. ______________ 8. ______________ 9. ______________ 10. ______________
联合国气候变化大会于2009年12月7日~18日在丹麦首都哥本哈根召开,焦点议题之一是发展“低碳经济”,减少温室气体排放,以控制日趋严重的温室效应。试回答:
(1)科学家采用组合转化技术,将CO2和H2以一定比例混合在特定的条件下发生反应2CO2+6H2=A+4H2O,A是一种化工原料。写出此物质的化学式_______。
(2)为减缓大气中CO2含量的增加,以下建议可行的是__________。
A.开发太阳能、水能、风能、地热等新能源
B.禁止使用煤、石油、天然气等矿物燃料
C.大量植树造林,禁止乱砍滥伐