invetory net 和inventory gross各是什么意思，有什么区别，之前有一道题算inventory用的net，这题里怎么又用gross了

Carter has always been satisfied with the execution provided on the full-service trades, and the new low-fee trades are comparableothe fees of other brokers currently used for the accounts that prohibit soft dollar arrangements .A. Karter can trade for his accounts that prohibit soft dollar arrangements under the new low-fee trading scheme. B. Carter cannot use the new trading scheme because the commissions are prohibited by t soft dollar restrictions of the accounts .c. Carter should trade only through the new low-fee scheme and should increase his trading volume to meet his required commission commitment. B选项为什么不对

老师好，你在其他的答疑里面解释Par bond yield curve不能被观察出来的理由时说“因为市场上通常没有每一个到期日的债券，所以 par curve 是通过使用市场上的任何到期日来构建的”，我的疑问是coupon bond yield curve不也是由一系列不同期限的coupon bond的YTM组成吗，这也是由每一个不同期限组成的一系列期限，怎么这些YTM就能被观察出来了？

老师，感觉b选项也是对的，双方都可能违约

老师，感觉b选项也是对的，双方都可能违约

老师 我想问一下重置成本和NRV在理解上有什么实质性的区别呀？

bop账户不是主要有三个吗，经常账户和资本账户盈亏抵消了，那金融账户怎么办呢？

老师，为什么22题这个incentive fee 不用减去management fee 计算而12题需要呢

这是哪科的题……

老师第7题的解析，D+E是怎么算出1.8033的呀？还有0.555的权重是怎么计算出来的呢