Custom and practice” agreements are usually__________.(2分) A、known to employees only B、always written clearly in the contract C、signed by both the employer and a trade union D、included in the contract
Custom and practice” agreements are usually__________.<br><br>(2分)<br> A、known to employees only<br> B、always written clearly in the contract<br> C、signed by both the employer and a trade union<br> D、included in the contract