距地面()米以上为高空作业。
A、2米
B、3米
C、4米
D、5米
参考答案:A
They told me the name of the baby, Gustavo, like his father; I ________ have liked the name Fernando better, but said nothing.
A.would
B.must
C.shall
D.need
数据字典是各类数据描述的集合,包括数据项、处理过程、______、______、______。