问题
判断题
水井酸化过程中要求高压、高速大排量将施工酸液挤入地层。
答案
参考答案:对
水井酸化过程中要求高压、高速大排量将施工酸液挤入地层。
参考答案:对
I was a student of yours in Grade Six, and I hope you still remember me. I’m __ this letter because I want to let you know that the school year with you was important and special to me. I know I __ be very quiet in your class, and you never said much to me. But you did something that made a big _____ in my life. You see, all through my first year in schools, I hated to read. Books were just words that had ____ to do with me, and I felt bored while reading them. I’ll never ____ the first day of Grade Six when you took out a thick book and began to read the story to our class. It ____ that your voice changed with the people in the story, and you drew pictures in my mind as you read ____ . Since that day, I always waited for the time that you read to the class. You ___ us all kinds of wonderful stories. During the summer after my year in your class, I ____ the stories you read. So one day I picked up a book and read it all by myself. I found out that I could make the words ____ , too. Now, I love to read! Thank you for opening the world of books for me. Yours, Linda
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如表是某生物兴趣小组同学的实验记录,以下说法正确的是( )
试管编号 | 甲 | 乙 | 丙 |
加入物质 | 浆糊唾液 | 浆糊唾液盐酸 | 浆糊唾液 |
温度 | 37℃ | 37℃ | 100℃ |
时间 | 10分钟 | 10分钟 | 10分钟 |
加入碘液后的现象 | 不变蓝 | 变蓝 | 变蓝 |
A.本实验可以探究唾液能否消化淀粉
B.本实验可以探究淀粉遇碘能否变蓝色
C.本实验可以探究温度对唾液淀粉酶消化作用的影响
D.本实验可以探究盐酸对唾液淀粉酶消化作用的影响