因纳税人、扣缴义务人计算错误等失误,未缴或者少缴税款的,税务机关在3年内可以追征税款、滞纳金;有特殊情况的,追征期可以延长到( )年。
A.5
B.6
C.8
D.10
参考答案:A
—Alex's already gone back to Australia, _________?
—_________. He is on a visit to Shanghai.[ ]
A. isn't he; No
B. hasn't he; Yes
C. isn't he; Yes
D. hasn't he; No
VHF发射机面板指示VSWR过高,系统可能故障是()。
A.调制器
B.RF功放
C.收发转换继电器
D.射频电缆