母线回路代码生成规则是什么？
参考答案：
回路代码规则“M”+电压等级码+变电站代码+接线方式代码+旁路方式代码+母线分组数+“00000”。
A．速度变化很大，但加速度很小
B．速度越来越大，加速度却在减小
C．速度变化很快，加速度却很小
D．加速度与速度方向相反，速度却在增加
词汇运用。
根据句意和汉语提示，在空白处填入适当的单词。
1._____________(节日)like Christmas and Halloween are also popular in China now.
2.Pop star White Houston was found _______________( 死亡)on the eve of the Grammy Awards.
3.—What are the workers doing over there?
—They are busy_______________( 建造 ) the BRT between Haizhou and Xugou.
4. Unluckily , the recent floods _______________( 摧毁)many farm-houses in the south.
5. Daniel did the exercises too________________( 粗心) , and it made his teacher very angry.
