问题
选择题
Global warming causes the ocean ________, which in turn speeds ice melting.
A. to warm B. warming 
warmed D. warm
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Global warming causes the ocean ________, which in turn speeds ice melting.
A. to warm B. warming warmed D. warm
答案：A