【单选题】亚急性细菌性心内膜炎好发于原先受损伤的瓣膜,最常见下述哪种情况()
【单选题】Which one is INFORMAL?
【单选题】Which expression is informal?
B.
It’s my great honor to introduce myself.
C.
Pleased to meet you.
【判断题】若有不全为0的数 ,使 成立,则 线性相关, 亦线性相关.( )
【单选题】Which word is informal synonym of cogency?
【单选题】Which word is informal synonym of pedestrian?
【单选题】which expression is informal for partings?
B.
Take care and all the best
D.
I really must be going
【判断题】若有不全为0的数182-1,使182-2成立,则182-3线性相关,182-4亦线性相关.( )
【单选题】Which of the following expressions is informal?