【简答题】一个底面积400厘米 2 的薄壁容器,放在水平地面上,若在容器中注入20牛的水,水深10厘米. 求:(1)容器底部受到水的压强; (2)容器底部受到水的压力; (3)如果容器的重力为4牛,则水平地面受到的压强是多少? (4)判断薄壁容器的形状大致如何?(可图示说明)
【简答题】Financial success often depends on marketing ability. Finance, operations, accounting, and other business functions will not really matter if there is not sufficient demand for products and services s...
【单选题】腊肠母犬,8岁,4kg, 病初食欲增力口,饮水、排尿多,且地面尿湿处有蚂蚁聚集。血液生化检查最可能出现(2010真题下162)
【单选题】薄壁容器是指:
C.
壁厚比上内径小于等于外、内径之比的五分之一的容器
D.
壁厚比上内径小于等于外、内径之比的十分之一的容器
【简答题】压力容器的径比 K= 1 ,按照 K 值划分,当 K 2 时,容器属于薄壁容器。
【简答题】STRATEGIC ALLIANCES As companies try to extend their reach, share risks or reduce costs, many of them decide to form strategic alliances. Considering that such alliances often fail, one may wonder whe...
【简答题】Passage 1: The Value of Packaging and Labeling As a key marketing tool, packaging is expected by companies to be a “spokesperson” for their products. It is because that an appealing package will creat...
【简答题】The Internet — Shorten Time-to-market for New Drugs [A] The Federal Drug Administration (FDA) must be extremely careful in approving new drugs. However, there is public pressure on the FDA to approve ...
【单选题】孟子认为,如果君主视臣下为草芥,臣下就可以把君主视为( )。