ISFCn.国际心脏病联合会isv.是（be的第三人称单数一般现在时）Is your computer running smoothly?你的计算机运行平稳吗?Is your eyesight failing recently?你近来视力有所变差吗？Is badminton anything like tennis?羽毛球和网球有些相似吗?Is sluggish newspaper gold amerce?滞报金是不是罚款?Is this the left-luggage office?外宾: 这儿是小件行李寄存处吗?Is ski-jumping an Olympic sport?跳台滑雪是不是奥运会项目?Is an unambiguous date-time value.是明确的日期时间值。Is that right? Absolutely right.那样对吗? 绝对正确。Isn't this dancing hall marvelous?以色列大使馆Is spyware clogging your firewall?是间谍程序阻塞了你的防火墙吗?