With the population explosion, scientists will have to ______ new methods of increasing the worldA. lead to B. stick to C. carry out D. come up with单选

问题描述:

With the population explosion, scientists will have to ______ new methods of increasing the world
A. lead to B. stick to C. carry out D. come up with

单选

D
想出新办法
随着人口激增,科学家得想出新办法去增加世界……