社会主义从理论到实践的飞跃，通过了（）才得以实现的。
A. * * 主义
B.无产阶级革命
C.资本主义
D.暴力革命
参考答案：B
Not until he went through real hardship ________the love we have for our families is important.
A．had he realized
B．did he realize
C．he realized
D．he had realized
消防三级网电台预置信道数不小于16个。（）
