应补充询问下列哪项最无诊断意义
A.不洁饮食史
B.精神创伤史
C.疫水接触史
D.家族史
E.盗汗、午后潮热史
参考答案:E
The moment ______Leo will never forget is ______he joined the Air Force
A.when; that
B.that; that
C.that; when
D.when; /
过电流保护的缺点有哪些?