Extensive tests have been ____ on the patient.
举一反三
- Quite a few (experiment)（）tests have been done, but none of them could help to cure the patient.
- All possible measures have been taken to______(relief) the symptoms of the patient.
- The products have been ________ to strict tests before leaving the factory.
- Up to now, only 10% of the scheduled tests have been undertaken.
- A nurse is never too patient to a patient.