The baby stops _______ as soon as he ______ his mother coming into the room.
A:to cry, sees
B:crying, will see
C:crying, sees
D:to cry, will see
******在文艺座谈会指出,文艺是时代前进的号角,实行两个一百年奋斗目标,文艺的作用不可替代,广大文艺工作者大有可为。这主要是因为( )
函数y=3+2x中,自变量x的取值范围是____ .