【单选题】人体内常驻的条件致病菌成为致病菌而引起的感染称为( )
【判断题】电动机的故障一般可分为电气故障和机械故障。
【简答题】计算机故障一般分为________故障和________故障。
【判断题】机器设备的故障一般分为劣化故障和突发故障两类。()
【单选题】引起艾滋病病毒(HIV〕条件性感染的微生物,主要有
【单选题】How does Mr. Darcy offend Elizabeth at the first ball?
A.
He insults her family.
B.
He dances with Jane too often.
D.
He refuses to dance with her.