题目内容
An experienced doctor usually judges a patient’s illness according to the various________.
A.signs? B.symptoms
C.signals D.marks
【答案】
B
【解析】
考查名词词义。sign信号,暗号;symptom症状,征兆;signal预兆,征象;信号;mark印,记号,符号。由句意可知B项正确。
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