[单选题]A.40kPaB.20kPaC.79.2kPaD.80kPa

[多选题]A.钢筋保护层厚度B.混凝土电阻率C.混凝土碳化状况D.混凝土强度E.氯离子含量

[单选题]A.216～225hB.226～235hC.236～245hD.246～255h

[单选题]A.B.C.D.

[单选题]A.系统实际阻力过大B.泵的扬程选择过大C.泵的流量选择过大D.未采用高阻力阀门

[单选题]A.增大管道管径减少系统阻力B.冷却水泵改为变频水泵C.将冷却塔的出水管直接连接到泵的吸入口D.将冷却水泵的扬程适当降低

[单选题]A.216～225hB.226～235hC.236～245hD.246～255h

[单选题]A.0.0171～0.0190B.0.0191～0.0210C.0.0211～0.0230D.0.0236～0.0270

[单选题]A.216～225hB.226～235hC.236～245hD.246～255h

[单选题]A.0.0171～0.0190B.0.0191～0.0210C.0.0211～0.0230D.0.0236～0.0270