MCQOPTIONS
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| 1. |
What is the concentration of electrolytes that are commonly used in ES drilling? |
| A. | 1 to 10wt % |
| B. | 12 to 20wt % |
| C. | 23 to 30wt % |
| D. | 34 to 50wt % |
| Answer» C. 23 to 30wt % | |