【简答题】例:(强度验算)圆截面杆的截面积A 1= 1260 mm2 ,A 2 = 960 mm2 ,A 3 = 710 mm2 ,所受载荷如图1所示。杆由铸铁制成,杆件的内力图如图2所示,许用拉应力[σt] = 30MPa,许用压应力[σc]=150MPa。试校核此杆的强度是否满足要求。
【简答题】“少阴病,六七日,(),急下之,宜大承气汤。”
【简答题】刑事诉讼中所应用的“法律”主要包括哪些?
【单选题】少阴病,六七日, ,急下之,宜大承气汤。
【单选题】Unhealthy food can do harm to your hair; ____. [ ]
A.
and can the stress in life
B.
and the stress in life can
C.
so can the stress in life
D.
so the stress in life can