不被硫酸钡所吸附的凝血因子是()
A.Ⅶ
B.Ⅹ
C.Ⅸ
D.PK
E.Ⅱ
参考答案:D
—Could you tell me ________ the party?
—Next Friday.
A. where we are going to have
B. when we are going to have
C. when we were going to have
厂用电负荷宜装设单独保护器,但下列情况( )也可数个负荷共用一套保护箱,但应保证能迅速切除任一个负荷的短路故障。
A.工艺上密切相关的一组电动机;
B.不重要负荷;
C.单个大容量负荷;
D.不经常运行且容量不大的负荷。