光合作用的原料是______和______，产物是______和氧气． 发布时间：2017-06-13 15:56 │ 来源：www.tikuol.com 题型：填空题 问题： 光合作用的原料是______和______，产物是______和氧气．
题型：填空题 完形填空 Water, it’s a problem for the whole world. A bottle (瓶) of water may not seem like much to us, 1 it can help the people who live in drought-hit (遭受旱灾的) areas in China. In the past few months, many places in southwest China have 2 a serious drought. There has been very little 3 since last autumn. More than 20 million people are 4 trouble finding safe drinking water. After learning about the drought, many people around the country helped by 5 away water, money and other resources (资源) to the people there. Last week, the Young Pioneers and the Communist Youth League in China called on (号召) each student to give one bottle of water to the drought-hit area. In Xi’an, 900 students bought over 100 bottles of water 6 their pocket money. They also wrote their 7 on the bottles. “I hope you get more rain there. I hope you are happy.” A bottle of water isn’t much, but thousands of bottles will be very 8 . The serious drought has also made students 9 the importance of saving water. One student said, “I have decided to take a shower twice a week 10 every day to save water.” ( )1. A. unless ( )2. A. bought ( )3. A. rain ( )4. A. causing ( )5. A. drinking ( )6. A. by ( )7. A. plans ( )8. A. relaxing ( )9. A. think ( )10.A. instead B. and B. experiencedB. wind B. making B. givingB. in B. notes B. beautifulB. realizeB. instead of C. but C. studied C. snow C. having C. getting C. for C. wishes C. boring C. miss C. except D. because D. missed D. sunshine D. bringing D. collecting D. with D. dates D. helpful D. regard D. because of 查看答案
题型：填空题 下列词语中，划线字的读音全部都正确的一组是（ ）（3分）A．狡黠xiá星宿xìù慰藉jí一抔黄土póuB．畸形qī拮据jū栈桥zhàn义愤填膺yīngC．抽噎yē窒息zhì豁免huò踉踉跄跄qiàngD．阴霾mái腆着tiǎn执拗ào怒不可遏hè 查看答案
题型：填空题 当水中含有铁和硅酸盐时，应通过试验确定除铁工艺流程，必要时可采用( )工艺。A．曝气→一级过滤→曝气→二级过滤 B．曝气单级接触氧化C．曝气→一级过滤→二级过滤 D．曝气氧化过滤 查看答案