【简答题】如图6-44所示,杆1为直径的圆截面钢杆,许用应力 [ σ ] 1 =140 MPa ;杆 2为边长 a=100 mm 的正方形截面木杆,许用应力 [ σ ] 1 =4.5 MPa 。已知结点 B 处挂一重物 Q =36kN, 试校核两杆的强度。
【判断题】台湾学者杨懋春认为父对子期望高也是中国传统家庭的特点之一。()
【单选题】5 如果在一行中输入1 2 3,当运行此程序时,会发生什么? print("Enter three numbers: ") number1 = eval(input()) number2 = eval(input()) number3 = eval(input()) # Compute average average = (number1 + number2 + number3) / 3 # Di...
【单选题】Industry should get rid of half its bosses, says behavioral psychologist Alfred J. Marrow.' Adults are quite capable of handling their lives outside their homes, at their jobs,' Marrow said in an inte...
A.
to inform. us that people are dissatisfied with their wages and hours.
B.
to explain that 'job enrichment' creates job.
C.
to suggest that bosses hinder production more than they help it.
D.
to persuade us to carry out our greater' job simplification'.
【单选题】计算机的程序设计语言可以分为汇编语言、高级语言和()
【单选题】Industry should get rid of half its bosses, says behavioral psychologist Alfred J. Marrow.' Adults are quite capable of handling their lives outside their homes, at their jobs,' Marrow said in an inte...
A.
to inform. us that people are dissatisfied with their wages and hours
B.
to explain that' job enrichment' creates job
C.
to suggest that bosses hinder production more than they help it
D.
to persuade us to carry out our greater' job simplification'
【单选题】Industry should get rid of half its bosses, says behavioral psychologist Alfred J. Marrow. 'Adults are quite capable of handling their lives outside their homes, at their jobs,' Marrow said in an inte...
A.
to inform. us that people are dissatisfied with their wages and hours
B.
to explain that 'job enrichment' creates jobs
C.
to suggest that too many bosses hinder production more than help it
D.
to persuade us to carry out our greater 'job simplification'
【单选题】整体分离痕迹的形成主要取决于不同的分离方式和( )的物理性质
【单选题】Industry should get rid of half its bosses, says behavioral psychologist Alfred J. Marrow. 'Adults are quite capable of handling their lives outside their homes, at their jobs,' Marrow said in an inte...
A.
to inform. us that people are dissatisfied with their wages and hours
B.
to explain that'job enrichment' creates job
C.
to suggest that bosses hinder production more than they help it
D.
to persuade us to carry out our greater 'job simplification'