停车过程中,防止转化炉猪尾管损坏的措施有()
A、炉管不发生超温
B、炉管不发生超压
C、保证炉膛温度下降平稳
D、炉膛温度均匀
参考答案:A, B, C
下列不属于生物的是
A.病毒
B.草履虫
C.钟乳石
D.柳树
—They all agree______George. Has the project been passed —Who______George can make the final decision
A. except; except B. except; besidesC. but; but D. besides; but