单选题It is well known that teaching is a job, _____ enough patience.Acalling onBcalling offCcalling forDcalling in
单选题
It is well known that teaching is a job, _____ enough patience.
A
calling on
B
calling off
C
calling for
D
calling in
参考解析
解析：
句意：大家都知道教学是一项需要充分耐心的工作。call for要求，需要。call on sb.拜访某人。call off取消。call in打电话汇报。
句意：大家都知道教学是一项需要充分耐心的工作。call for要求，需要。call on sb.拜访某人。call off取消。call in打电话汇报。
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