球囊扩张成形术治疗贲门失弛缓症,应选用的球囊直径为()
A.<1.0cm
B.1~1.5cm
C.1.5~2cm
D.3~4cm
E.>4.0cm
参考答案:D
----Promise you’ll never wear this kind of dress!
----________. What if I will give a performance?
A.It’s up to you
B.That reminds me
C.That depends
D.I forget that
领导者影响力的来源?