Some patients are_________to penicillin, so there is a test beforeinjection. [

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Some patients are_________to penicillin, so there is a test beforeinjection. [     ]
A. alternative
B. alert
C. allergic
D. angry

答案

举一反三

Animals can become unusually________when they are upset  by a sudden environmental change. [     ]
A. puzzled
B. predominant
C. vigorous
D. aggressive

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In those days, our________ concern was to provide people who were stopped by the snow storm
with food and health care. [     ]
A. normal
B. constant
C. permanent
D. primary

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The young researcher laughed at some of his______colleagues who stuck to outdated ideas.  [     ]
A. modern
B. present-day
C. up-to-date
D. contemporary

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He has done a very good job and is____our praise.[     ]
A. worth
B .worthy
C. worthwhile
D. worthy of

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This magazine is very______with    young people , who like its content and style.   [      ]
A. familiar
B. popular
C. similar
D. particular

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