动车组请求救援后,由车组配属局负责应急救援指挥,随车机械师做好救援准备工作并严格服从指挥。
参考答案:错
0.45时=______分8吨80千克=______吨.
I found difficult to remember all the names. [ ]
A. it
B. it's
C. this
D. that