螺栓联接因结构简单,装拆方便,而被广泛应用。
参考答案:对
Only after they had discussed the matter for several hours ________ a decision.
A.they reached
B.did they reach
C.they reach
D.do they reach
计算机的指令系统提供多种寻址方式,若操作数的地址在寄存器中,则称为 (60) 寻址。
A.寄存器直接
B.寄存器间接
C.直接
D.间接