observe, record or detect to check for any changes or developments
举一反三
- Observe changes
- How was the weight used A: To check the accuracy of scales. B: To calculate the density of other metals. C: To observe changes in the atmosphere. D: To measure amounts of rainfall.
- Questions 22～25 are based on the following telephone interview. How was the weight used A: To check the accuracy of scales. B: To calculate the density of other metals. C: To observe changes in the atmosphere. D: To measure amounts of rainfall.
- In order to detect rot in manila lines，you should（）. A: feel the surface of the line for broken fibers B: measure the reduction in circumference of the line C: observe any mildew on the outer surface D: open the strands and examine the inner fiber
- An instrument that maintains a continuous record of humidity changes is called a（）.