GRE Text Completion Question 1219
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Source: Red
In the design of medical experiments, the need for (i) _____ assignment of treatments to patients must be (ii) _____ the difficulty of persuading patients to participate in an experiment in which their treatment is decided by chance.
| Blank(i) | Blank(ii) |
|---|---|
| A competent | D reconciled with |
| B random | E emphasized by |
| C swift | F associated with |