问题
选择题
Who ________a theory about black holes?
A．slow down
B．put forward
C．absorb into
D．make room for
答案
答案：B
考查短语：put forward 提出，想出， 句意：谁想出了关于黑洞的理论？
搜题请搜索小程序“爱下问搜题”
Who ________a theory about black holes?
A．slow down
B．put forward
C．absorb into
D．make room for
答案：B
考查短语：put forward 提出，想出， 句意：谁想出了关于黑洞的理论？