ISGOn.国际地理眼科学会
isv.是(be的第三人称单数一般现在时)
Isn't marriage your vocation?伊斯纳克
Is this account intelligible?这样的描述可被理解吗?
Is this your first pregnancy?这是第一胎吗?
Is that a gold watch-chain?你这是金表链吗?
Ischiatic hernia with obstruction坐骨孔疝伴梗阻
Is this wrist watch accurate?这只手表准吗?
Is this the latest hairstyle?这是不是最新发型?
Is there a city?tour bus?有城市旅行车吗?
Is your new car satisfactory?你的新汽车使你满意吧?
Is that dress Cynthia Rowley?|这是辛西雅罗莉的服饰吗?