关于最优证券组合，以下说法正确的是（）。
更新时间:2024-11-24 03:36:41 A、最优组合是风险最小的组合Iwasreallyanxiousaboutyou.You______homewithoutaword.
Aftermonthsofvoyage,Columbusarrivedin______laterprovedtobeanewcontinent.
Hewouldhavegivenyoumorehelp,ifhe________sobusy.
AfaultlinerunsthelengthofNewZealand,whichmeansthatitoftenhas________.
Newdriversarefarmore________tohaveaccidentsthanexperienceddrivers.
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