架空送电线路铁塔遭受雷电击后跳闸，雷电流做如下分流，以下哪几_爱下问搜题

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问题多项选择题

架空送电线路铁塔遭受雷电击后跳闸，雷电流做如下分流，以下哪几种说法不，正确？（）

A.全部沿地线向前和向后分成二路前进

B.一部分沿铁塔身经接地电阻入地，其余沿地线分流

C.约三等分，分别沿地线、导线、塔身泄出

D.约三等分，分别沿地线、导线、对地电容泄入大地

答案

参考答案：A, B, D

选择题

下列离子方程式中正确的是

A．乙醇和金属钠反应：２CH₃CH₂OH+２Na →２CH₃CH₂O^－+ Na⁺+H₂↑

B．氯乙烷在NaOH醇溶液中加热：CH₃CH₂Cl + OH^－CH₃CH₂OH+Cl^－

C．苯酚与NaOH溶液中和反应：H⁺ + OH^－ = H₂O

D．苯酚钠溶液中通入少量CO₂：

填空题

选词填空，并注意词形变化。

fix up, be afraid of, break off, instead (of),
deal with, get along well with, belong to,
make up, stay away from, take after

1. Don't _____ the dog. It is very kind.
2. The boy _____ some sentences with the new words he had learnt those days.
3. I don't watch TV. I read books _____.
4. How do we _____ our problems?
5. Tim _____ his father very much.
6. Does the house _____ your mother?
7. Peter _____ his classmates.
8. They _____ their friendship after the quarrel.
9. _____ drugs. They are dangerous.
10. Please help me _____ my bike.