【单选题】下边框 5 像素、左边框 20 像素与右边框 1 像素的边框?( )
A.
border-width:10px 5px 20px 1px
B.
border-width:10px 20px 5px 1px
C.
border-width:5px 20px 10px 1px
D.
border-width:10px 1px 5px 20px
【简答题】四、计算题(共26分) 1. 已知燃气密度0.7kg/Nm 3 ,运动粘度25×10 -6 m 2 /s,有 φ 219×7中压燃气钢管,长3000m,起点压力150KPa,输送燃气流量2000Nm 3 /h,查燃气管道水力计算图表得 (图表显示数据),管道起终点高程差为1000 m(终点高于起点),局部阻力损失不计,请计算该管段的终点压力。 (6分) 2. 如下图所示的区域燃气管网,各管段长度如...
【单选题】Alice, one of the 13 women extras, was probably playing the role of______.
A.
a doctor working in the mental hospital
B.
a nurse who was helping her patients
C.
another housewife busy with her work
D.
another patient with mental problem
【判断题】图( a)所示对称结构,受反对称荷载时,其等效的半结构如图(b)所示。( )
【简答题】已知A点的相对高程为100 m ,B点的相对高程为-200 m ,则高差 h BA =___________; 若 A点在大地水准面上,则B点的绝对高程为___________。
【单选题】Michelangelo's Masterpiece: David In 1501, 25-year-old Michelangelo Buonarroti began working on his colossal masterpiece, the 17-foot-tall marble David. From a huge block of marble that had been aband...
A.
did better than Donatello and other precursors had done
B.
did as well as Donatello and other precursors had done
C.
did not live as long as Donatello and other precursors
D.
didn't fail to produce another sculpture of the same figure