在装配图上标注配合代号，应采用（）标注法
A.公差带
B.标准公差
C.组合式
D.过盈配合
参考答案：C
My parents _____ in Hong Kong. They were born there and have lived nowhere else. [ ]
A. live
B. lived
C. were living
D. had lived
病毒性心肌炎的体征是（）
A.可见心脏轻度增大，可闻及第四心音
B.可见颈静脉怒张，心脏听诊可闻及奔马律
C.查体常有心律失常，听诊可闻及第三或第四心音、奔马律
D.可见心界扩大，听诊心音减弱，常可闻及第三或第四心音
E.以上均不对
