【单选题】一敞口储槽内盛有 20 °C的苯,苯的密度为 880Kg/m 3。液面距槽低 9m, 槽底侧面有一直径为 500mm 的人孔,其中心距槽底 600mm ,人孔覆以孔盖。试求:( 1 )人孔盖共承受多少液柱静压力,一 N 表示;( 2 )槽底面所受的压强是多少 Pa?
A.
1.42×104 N; 7.77×104 Pa
B.
1.42×105 N; 7.77×104 Pa
C.
1.42×104 N; 7.77×105 Pa
D.
1.42×103 N; 7.77×105 Pa
【单选题】长城公司月初短期借款余额为100万元,本月份向银行借入5个月借款20万元,归还前期的短期借款60万元,则本月末短期借款的余额为( )万元。
【简答题】The pressure to purchase is real. It may be true that everybody wants a high-end TV. After all, nobody wants to be a nobody. 2. I was standing just outside the doorway of a Wal-Mart, offering a “thank...
【单选题】长城公司月初短期借款余额为 100万元,本月份向银行介入5个月借款20万元,归还前期的短期借款60万元,则本月末短期借款的余额为( )万元。
【单选题】下列哪项是猪伪狂犬病的主要眼观病理变化?()
【简答题】1.
The pressure to purchase is real. It may be true that everybody wants a
high-end TV. After all, nobody wants to be a nobody. 2. I
was standing just outside the doorway of a Wal-Mart, offering a “th...
【简答题】补全对话。 A: What can l do for you, sir? B: 1 A: Could you tell me when you would like to fly? B: On the l0th of next month. A: The l0th? Just a minute, please. I have to check the computer. Hmm, I'm sorr...
【简答题】In the real world, nobody cares that you went to an Ivy League school [ A ]. As a high school junior, everything in my life revolved around getting into the right college. I ditly attended my SAT...
【单选题】how many seats in the house of commons should a party hold at least in order to win the election?