国有企业的工会委员会是职工代表大会的权利机构。
参考答案:错
在石油工业中,将重油制成乙烯的方法是( )。
A.裂化
B.裂解
C.干馏
D.分馏
Jim has been looking for his dictionary for almost an hour,and Tracy forgot to tell him that David________it ________2 hours ago.[ ]
A. took; away
B. took; in
C. took; over
D. took; on