废气温度每降低25'C,焦炉热工效率提高1%,炼焦耗热量约降低( )kJ/kg。
A.18 B.20 C.25 D.28
参考答案:C
---Did your friend go to Japan last week?---____.
A.No, she never go there
B.NO, she has never been there
C.No, she’s never been there
D.NO, she never was there
银行业金融机构从事期货交易融资或者担保业务的资格的批准机构是()。
A.国务院银行业监督管理机构
B.国务院期货监督管理机构
C.中国期货业协会
D.中国证监会