生产实践证明,镇静钢的钢包内回磷现象比沸腾钢严重。
参考答案:对
On the way to her wedding, Zhu Yingtai goes past _____ Liang Shanbo is buried and begins to cry.[ ]
A. in which
B. where
C. which
D. what
ZL50装载机作业时水温和油温均不得超过90℃。