当机炉发生故障时，应积极采取措施排除，遇特殊情况需慢车或停车时，由（）决定。
A.轮机长
B.值班轮机员
C.值班驾驶员
参考答案：B
请根据短文内容 , 判断正(A)误( B) 。
小题1:Mike was tired but very happy last Sunday.
小题2:Mike and his classmates met at the foot of the West Hill.
小题3:They walked to the West Hill singing, talking and laughing the whole morning.
小题4:After they got to the top of the hill, they could see small rivers and green rice in the fields below them.
小题5:They were not tired when they returned to the school.
20世纪60年代美国学者马伯特等人对土壤形态、属性和分类进行定量研究，提出了土壤诊断层和诊断特性对土壤进行分类。
请根据短文内容 , 判断正(A)误( B) 。