According to the first paragraph, a contract of employment__________.(2分) A、could be in an oral form B、must be a written one C、should be signed by a trade union D、ought to be a workplace agreement
According to the first paragraph, a contract of employment__________.<br><br>(2分)<br> A、could be in an oral form<br> B、must be a written one<br> C、should be signed by a trade union<br> D、ought to be a workplace agreement