MCQOPTIONS
Saved Bookmarks
| 1. |
How many times that industrial corrosion is more corrosive than rural atmospheres? |
| A. | 10 to 20 |
| B. | 50 to 100 |
| C. | 30 to 50 |
| D. | 100 to 150 |
| Answer» C. 30 to 50 | |