【单选题】杨某是自由撰稿人,2017年杨某的一篇小说在某国发表,取得稿酬折合人民币40000元,并按该国税法规定缴纳了个人所得税4500元;当年,杨某在国内将另一作品的手稿原件公开拍卖,取得拍卖收入50000元。2017年杨某应缴纳个人所得税( )元。
【判断题】高速铁路接触网的定位装置包括定位器和接触管。( )
【单选题】相对而言,用样本指标去推断相应的全及指标,点估计的可靠性比区间估计( )。
【单选题】The first debate was____________to have been held on Tuesday.
【单选题】相对而言,用样本指标去推断相应的全及指标,点估计的可靠性比区间估计( )。
【单选题】PD Co is deciding whether to replace its delivery vans every year or every other year. The initial cost of a van is $20,000. Maintenance costs would be nil in the first year, and $5,000 at the end of...
【单选题】The first debate was____________to have been held on Tuesday.
【单选题】相对而言,用样本指标去推断相应的全及指标,点估计的可靠性比区间估计的( ) 。
【单选题】The first debate_____ have been held on Tuesday.