54. Extensive tests have been on the patient.A. carried onB. carried outC. carried offD. c

发布时间：2020-08-16 06:58:15


54. Extensive tests have been      on the patient.
A. carried on
B. carried out
C. carried off
D. carried away

网友回答

A. carried on
(答案→)B. carried out
C. carried off
D. carried away
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