选择题：If you go around with _____ shoulders in this heat

题目内容：

If you go around with _____ shoulders in this heat you will get burned.（单选）—5分
A bare
B hollow
C naked
D empty

参考答案：

采用分类法的目的是( )。(本题5.0分)A、计算各类产品成本B、加强各类产品的成本管理C、简

采用分类法的目的是( )。(本题5.0分)A、计算各类产品成本B、加强各类产品的成本管理C、简化成本计算工作D、划清各类产品成本界限

Traffic accidents killed more than 104,000 people in China last year. Chinese ci

– Could you please turn down the music? – ______. Is it disturbing you?（单选）—5分A

4、图示槽形截面铸铁梁，F=10 kN，Me=70 kN·m，许用拉应力[σt]=35 MPa，许用压应力[σc]=120MPa。试校核梁的强度。（20分）