大学生剧团从8名学生中选出4人分别担任甲、乙、丙、丁四个不同的表演角色，若其中有两名

如图，电阻箱两接线柱间的电阻值是______Ω．

垂直管道作保温层时，应设支撑托板，支撑托板应焊在管壁上，其位置在立管管卡的上部______mm处。

A．50

B．100

C．200

D．500

An analyst gathered the following information about two option-free bonds that each have a par value of $1000 : Bond 1Bond 2 Time to maturity 5years10years Annual coupon rate5.0% 7.0% Discount rate today6.0% 6.5% If the discount rate does not change for rather bond, one year from today, which of the following most likely describes the change in price for each bond（）

A. Both bond 1 and 2 will decrease. 

B. Both bond 1 and 2 will increase. 

C. Bond 1 will decrease and bond 2 will decrease.

巡视作业指导书在哪里填写并关联巡视任务？

（）不属于刀工的直刀法。

A.削法

B.切法

C.剁法

D.斩法