hundreds of thousand 还是 hundreds of thousand哪个是正确的?弄错了，第二个是hundreds of thousands

hundreds of thousand 还是 hundreds of thousand哪个是正确的?弄错了，第二个是hundreds of thousands There are ______ monkeys on the Monkey Island.A.hundred of thousands of B.hundred of thousands of C.hundreds of thousand of D.hundreds of thousands of ①hundred of ② hundreds of ③thousand of ④thousands of ⑤hundreds of thousands 后面的名词+s还是不 The big earthquake killed ____people.A.hundreds of thousands of B.several million ofC.many thousand of D.hundreds of thousands There were () people on the square at that time and two () people were hurt.A.thousand of；hundred ofB.thousands；hundreds ofC.thousands of；hundredD.thousands of；hundreds There are nine thousand books in the library and nine _________ them are about music.A.hundreds B.hundreds of C.hundred D.hundred of There are ___flowers in the park.A hundreds of thousands of B hundreds and thousandC hunderd of thousands of D hundreds and thousand of选哪个选哪个,为什么? there are about five ( )young trees on the hilla.hundred d.hundreds c.hundred of d.thousand of hundreds of thousands of这类的和 数字加 hundred/thousand 这类的怎么用?hundreds of thousands of这类的和 数字加 hundred/thousand 这类的怎么用?然后再问道题：（ ）more A.hundreds of B.hundreds C.a hundredD.thousands of hundreds of thousands of hundreds of thousands of 请教有关英语中数字单位的用法.关于数字单位:hundred/thousand/million的用法.还有hundreds of/thousands of/millions of的用法.和hundred of/thousand of/million of的用法..以及他们的区别在哪里? hundred ,hundreds,hundred of,hundreds of... hundred ,hundreds,hundred of,hundreds of... hundreds of time / hundreds of times I study in High School Affiliated to Southwest University.There are ____ students in our school.Nine of them are girls.A.thousands of;hundredB.thousand of;hundredsC.thousand of;hundredD.thousands of;hundreds I saw ___ books in our school library.A.thousand and hundred of B.thousands and hundred of C.thousand and hundreds of D.thousands of huandreds of请问应该选哪一个? The big earthquake killed C peopleA.many thousand ofB.several million ofC.hundreds of thousands接下of D.hundred of thousands求解析.