The nurse would evaluate that the client understands his home care instructions after scleral buckling for a detached retina if the client says which of the following statements

A. "I should avoid abrupt movements of the head. "
B. "I should exercise the eye muscles each day. "
C. "I should turn the entire head rather than just the eyes for sight. "
D. "I should avoid activities requiring good depth perception. "

髋关节结核的晚期X线表现是（）

A.股骨头消失

B.病理性前脱位

C.进行性关节间隙变窄

D.边缘型骨破坏

E.显示肿胀的关节囊