工程造价咨询企业资质等级包括( )。
A.甲级
B.乙级
C.丙级
D.暂定级
E.丁级
参考答案:A,B
Our teacher asked us to give all the used books to ______ needed them.
A.all
B.whom
C.those
D.those who
药材绵马贯众的药用部位是()
A.块根
B.球茎
C.带叶柄残基的根茎
D.块茎
E.鳞茎