Today I showed some foreign friends in our city. We started  1.    

off by a car from the Friendship Hotel at 8 o’clock am. We first went 2.     

to the Zhongshan Park. We were both struck by its beautiful flowers 3.     

there. Then, we visited the city museum. We saw plenty of valuable  4.     

things, from them we learned more about the city. After that we  5.    

devote to the Jinshan Temple. There is a beautiful place of interest in 6.    

our city, but from there we enjoyed the wonderful scenery of the  7.   

sea.We had a delicious lunch at the Seafood Restaurant and come 8.   

back at 1:20 pm. All the foreign friends were pleased my arrangement. 9.   

I was happy that we do have a wonderful time today.           10.   

变压器隐蔽工程验收环节，有载调压切换装置的（）接触良好，分接引线连接正确、牢固，切换开关部分密封良好。

A.分接开关

B.选择开关

C.调压开关

D.范围开关