A population explosion will lead to ______. [br] It took ______ years for world

游客2024-07-09  13

问题 A population explosion will lead to ______. [br] It took ______ years for world population to grow from 1 billion to 3 billion.

选项 A、100
B、115
C、130
D、145

答案 C

解析 本题为计算题,信息点定位在第五段,由1 billion到2 billion需100 years,由2 billion到3 billion需30years,两者相加130years,即选项C。
转载请注明原文地址:https://tihaiku.com/zcyy/3669724.html
最新回复(0)