据《国家环境保护"十二五".规划》,新型干法水泥窑要进行低氮燃烧技术改造,新建水泥生产线要安装效率不低于()的脱硝设施。
A.50%
B.60%
C.70%
D.80%
参考答案:B
-Drive carefully so that everyone can enjoy a long life.
-Yes, I agree with you.
A.in order that
B.in order to
C.unless
D.whether
某轮真航向为250°,已知罗经差为2°W,求该轮所驶罗航向()
A、252°
B、248°
C、288°
D、208°