万全县独具特色的汉族民俗舞蹈是（）。
A.打棍
B.活马舞
C.蹦鼓子舞
D.高跷戏
参考答案：A
The weight of your bicycle is twice __ that of mine.
A．as many as
B．as large as
C．as heavy as
D．as more as
采用局部包扎法进行六氟化硫检漏，包扎时间以（）小时为宜。
A.12~24
B.48
C.4~5
D.24
