问题
填空题
碳质还原剂是铁合金还原电炉应用最()最()的还原剂。
答案
参考答案:广泛;廉价
碳质还原剂是铁合金还原电炉应用最()最()的还原剂。
参考答案:广泛;廉价
If a futures investor has a SHORT position and futures prices rise, his margin account will:
A.
A. show a GAIN. |
B.
B. suffer a LOSS. |
C.
C. remain unchanged. |