69. Demographers investigate _____ in specific locations.
(A) are there many people
(B) how many people are there
(C) how many people there are
(D) that there are how many people
詳解 (共 4 筆)
未解鎖
[間接問句] 原來的問句How man...
未解鎖
人口統計學家是在調查在某些特定區域有多少...
私人筆記 (共 1 筆)
未解鎖
人口統計學家是在調查在某些特定區域有多少...