士兵担任()职务的,由营级单位的主官任免。
A.副班长
B.班长
C.相当于班长
D.代理排长
参考答案:A, B, C
Nothing ________ after the terrible fire which had been caused by someone smoking in bed.
A.remained
B.continued
C.left
D.kept
喷嘴调节的汽轮机第一调阀常带有预启阀。