单项选择题
A. disapproving B. approving C. noncommittal D. doubtful
A. prescribing the medication needs the identified criteria B. the absence of the practitioners is a serious obstacle C. the presence of more practitioners is a new problem D. identifying the practitioner is of great importance
A. there was a long interval between cause and effect B. the weather was difficult for us to forecast C. weather forecasts were inaccurate D. ecologists didn’t exist until modem times