隐睾对人体的危害不包括（）。
A.发生肿瘤机会大
B.影响睾丸发育
C.影响阴茎的发育
D.双侧者影响生育能力
E.影响患儿的生长发育
参考答案：C, E
（），衣带日已缓。（古诗十九首《行行重行行》）
When teaching the mother of a 17-month-old about toilet training, which instruction would initially be most appropriate
A．Place the toddler on the potty chair every 2 hours for t0 minutes.
B．Offer a reward every time the child has a bowel movement in the potty chair.
C．Remove the diaper and use training pants to begin the process.
D．Be sure the child is ready before starting to toilet train.
