变电所采用交流操作电源时,可引自( )。
A.市电网
B.应急电源UPS
C.本所TV
D.本所TA
参考答案:C
The radio is too noisy. Would you please __________ a little? [ ]
A. turn it down
B. turn it up
C. turn it on
D. turn it off
企业为取得固定资产而交纳的增值税,应计入固定资产入账价值。 ( )