油田水的化学成分取决于()。 A.地表水 B.油田水的产状 C.油田水所处的地质环境 发布时间:2018-05-13 22:52 │ 来源:www.tikuol.com 题型:单项选择题 问题: 油田水的化学成分取决于()。A.地表水B.油田水的产状C.油田水所处的地质环境D.油田水的类型
题型:单项选择题 完形填空。 Here are my favorite photos 1 the first one, you can find it's 2 . I'm wearing a T-shirt and sitting on the grass. The 3 one is a photo of my family. I'm 4 computer games. My grandfather is playing the erhu. My father is 5 a newspaper. My grandmother is talking about the TV show 6 my sister. And my mother is 7 the table. I love this photo very much. In the third one, there are two 8 .They are my friends, Tim and his brother. They are playing basketball. In the last one, I'm singing and my friends are dancing. 9 I see these photos, I'm very happy. They make me think of the happy 10 . I will keep the photos all my life. ( )1. A. In ( )2. A. day ( )3. A. first ( )4. A. do ( )5. A. reading ( )6. A. to ( )7. A. having ( )8. A. girls ( )9. A. When ( )10. A. minute B. At B. night B. second B. doing B. seeing B. with B. sittingB. boys B. Where B. age C. For C. summer C. third C. playing C. looking atC. about C. buying C. pandas C. Why C. hour D. About D. spring D. fourth D. play D. writing D. on D. cleaning D. lions D. How D. time 查看答案
题型:单项选择题 如图所示,采用六个螺母与螺钉连接两个零件,拧紧这组螺母(螺母的编号分别为a、b、c、d、e、f)的正确流程是()A.依次拧紧ab→依次拧紧cd→依次拧紧efB.依次拧紧ad→依次拧紧be→依次拧紧fcC.依次拧紧ab(不完全拧紧)→依次拧紧cd(不完全拧紧)→依次拧紧ef(不完全拧紧)→依次拧紧abcdefD.依次拧紧ad(不完全拧紧)→依次拧紧be(不完全拧紧)→依次拧紧fc(不完全拧紧)→依次拧紧adbefc 查看答案