48______
A. introduced
B. recognized
C. identified
D. considered
第1题:
Alexander tried to get his work in the medical circles.
A. to recognize B. recognizing C. recognize D. recognized
第2题:
_________
A. research B. study C. recognize D. explore
第3题:
第4题:
Many things __________impossible in the past are common today.
A.to consider
B.being considered
C.considering
D.considered
第5题:
alexandertriedtogethiswork_______inthe medical circles .
A.torecognize
B.recognizing
C.recognize
D.recognized