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单选题
__4__
  • purchase some assets
  • the other side of the coin
  • bridge their differences
  • buy certain goods or services
  • make a deal
  • be willing to do
单选题
__5__
  • purchase some assets
  • the other side of the coin
  • bridge their differences
  • buy certain goods or services
  • make a deal
  • be willing to do
单选题
__6__
  • purchase some assets
  • the other side of the coin
  • bridge their differences
  • buy certain goods or services
  • make a deal
  • be willing to do
单选题

粉煤灰砌块又称( )

  • 粉煤灰硅酸盐砌块

  • 粉煤灰实心砌块

  • 粉煤灰空心砌块

  • 粉煤灰空心砖

单选题

蒸压加气混凝土砌块的制作原料为( )

  • 钙质材料和硅质材料

  • 碳质材料和硅质材料

  • 钙质材料和碳质材料

  • 磷质材料和钠质材料

单选题

下列关于加气混凝土砌块的特点和应用说法有误的一项是(  )

  • 加气混凝土砌块适用于建筑物的基础和温度长期高于80℃的建筑部位

  • 加气混凝土砌块体积密度小、保温及耐火性能好

  • 加气混凝土砌块抗震性能强、易于加工、施工方便

  • 加气混凝土砌块适用于低层建筑的承重墙,多层建筑的隔墙和高层框架结构的填充墙

单选题

混凝土小型空心砌块的空心率为( )

  • 25%~50%

  • 50%~80%

  • 10%~20%

  • 5%~10%

单选题

轻骨料混凝土小型空心砌块的体积密度不大于 ( )

  • 1400kg/m

  • 1000kg/m

  • 600 kg/m

  • 800kg/m

单选题

--- Would you please open this suitcase for me? I can't open it.

--- .

  • Oh, sorry to bother you.

  • Actually I’m not sure.

  • OK, let me see.

单选题

--- We'd be pleased if you could join us for dinner.

--- ____________________________________

  • Thank you

  • Yes, I'd be pleased to accept.

  • That's good