She never loses _______ with students , which made her the most popular teacher in our school.

A．balance

B．patience

C．independence

D．experience

有些疾病仅靠x线检查即能确诊，但除了( )

A．关节脱位

B．关节畸形

C．急性化脓性骨髓炎

D．以上均不是

E．骨折