陆超(15岁)签发一张支票,该出票行为的后果是()
A.签章无效
B.签章效力待定
C.签章有效
D.签章暂时无效
参考答案:A
Which of the following operations belongs to message passing
A.read and write
B.save and receive
C.wait and signal
D.P and V
不属于炉子炉底辊的是:()
A.水冷式炉底辊
B.碳套辊
C.耐热钢制的无水冷却辊
D.沉没辊