a lack of 与short of 怎么区分

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/23 18:37:39

a lack of 与short of 怎么区分
看这题：
Because of ____ knowledge about how it gets transmitted ,there are a great many people who have contracted HIV in China .
A a lack of B short of
答案是A , 我不理解 ,请帮看看谢谢啊

e short of
只能用主动
但是a lack of可以作为一个名词词组

a lack of 与short of 怎么区分请问short of 与a lack of 怎么区分 short of 与a lack of 怎么区分 a lack of a short of的区别 be lack of与 be short of区别?请举例说明 be short of 与be lack of 的区别? be short of 等于lack a lack of a lack of 与 no lack of 的区别那么补充一句：lack in 怎么用呢？ lack与lack of是怎么用的 lack是a lack of还是lack of 可数么? 提问?区分:1.a lack of .lack of2.be different to.be different fro as倒装句中 short of 和lack of 区别