B.电场线是客观存在的
C.电场中的电场线都是平行直线
D.电场中某点的电场强度是唯一的
答案:D
急性胰腺炎时,下列哪项可引起高热不退
A.出血坏死型胰腺炎
B.出现黄疽
C.并发急性呼吸窘迫综合征
D.并发胰腺脓肿
E.并发胰腺假性囊肿
In relation to employment law, explain any FIVE methods by which a contract of employment may be terminated. (10 marks)