临时到本省.自治区.直辖市行政区域以内从事经营活动的单位或个人,应当向经营地税务机关申请领购经营地的发票。()
参考答案:错
在下面程序的空白处,填上适当的内容。 Import java.io. *: import java.util. *; class BufferTest public static void main(String args[])throws IOExeeption FileOutputStream unbuf=new FileoutputStream("test.one"); BufferedOutputStream bur=new ______ (new FileOutputStream("test.two")); System.out.println("write file unbuffered:"+time(unbuf)+"ms"); System.out.println("write file buffered:"+time(buf)+"ms"); static int time(OutputStream os)throws IOException Date then=new Date(); for(int i=0;i<50000;i++)os.write(1); os.close(); return(int)((new Date()).getTime()-then.getTime());
绝大多数中耳胆脂瘤是()
A.真性肿瘤团块
B.胆固醇结晶团块
C.上皮分泌物团块
D.上皮角化物团块
E.胆固醇肉芽肿团块