问题
单项选择题
工作面有夹矸或开采天然焦、在上下部都有自由面的煤垛,最小爆破距离不得小于()米。
A.20
B.30
C.40
D.50
答案
参考答案:D
工作面有夹矸或开采天然焦、在上下部都有自由面的煤垛,最小爆破距离不得小于()米。
A.20
B.30
C.40
D.50
参考答案:D
An analyst does research about market multiple models and gathers the following information about three companies in the same industry:
Company | Operating Income | Enterprise Value |
A | $95000 | $829000 |
B | $29000 | $327000 |
C | $41000 | $452000 |
A. Company A.
B. Company B.
C. Company C.