be similar tobe similar to后边既可以加物主代词又可以加人,即:be similar to sth/sb be similar with后边只可以加人 ,即be similar with sb 例如: My problems are similar to yours. 我的问题与你的类似。 Wasps look similar to bees. 黄蜂看上去很像蜜蜂I have no similar with Tom. 汤姆和我毫无共同之处. 还有一个不同就是be similar to后边可以跟从句,而be similar with不可以be similar with 是某人对什么很熟悉 ,是主动 be similar to 是某物为某人所熟知,与...相似 , 是被动the similar painbe similar to 和。。。相似【Me YC真诚为你解答此题,若有疑问请及时追问,满意望及时选为满意回答】
3,annuity 和 perpetuity的区别
A perpetuity is an annuity that has no definite end, or a stream of cash payments that continues forever.A example is the convention used in real estate finance for valuing real estate with a cap rate. Using a cap rate, the value of a particular real estate asset is either the net income or the net cash flow of the property, divided by the cap rate. Effectively, the use of a cap rate to value a piece of real estate assumes that the current income from the property continues in perpetuity. Underlying this valuation is the assumption that rents will rise at the same rate as inflation. Although the property may be sold in future (or even the very near future), the assumption is that other investors will apply the same valuation approach to the property.pv = 每期投入金额 / (利息率- 投入增长率)请采纳