冶金长度
参考答案:
冶金长度通常指连铸机的结晶器液面到铸坯凝固末端的长度。
It was not until dark ______ he found that it was the correct way to solve the problem. [ ]
A. that
B. what
C. which
D. when
在我国,特赦由______决定。
A.国务院
B.最高人民法院
C.全国人大常委会
D.最高人民检察院