合同权利让与的构成要件
参考答案:
(1)须当事人之间达成合意;
(2)出让人须有有效的合同权利存在;
(3)让与的合同权利须具有可让与性;
(4)债权人须通知债务人。
He has been playing all afternoon ________ getting on with his work.[ ]
A. other than
B. more than
C. rather than
D. less than
关于输精管自然再通,下列叙述错误的是()
A.可继发于感染
B.可继发于输精管残端精子肉芽肿
C.可能是在异物肉芽肿的基础上再管化的结果
D.多发生于术后1个月
E.并非都是永久性的