男,27岁。膀胱结石直径2cm,选用最佳治疗方案()
A.排石疗法
B.膀胱切开取石术
C.经 * * 碎石术
D.体外冲击波碎石术
E.溶石疗法
参考答案:C
If Helen says she will complete the job on time you can always ________ her to deliver the goods
A.go on
B.rely on
C.look on
D.put on
起落架转换活门的工作条件。(空中、地面)