问题
选择题
—Do you know _____ he is?
—He says "1.75 metres", but I'm not sure. [ ]
A. how many
B. how old
C. how far
D. how tall
答案
答案：D
搜题请搜索小程序“爱下问搜题”
—Do you know _____ he is?
—He says "1.75 metres", but I'm not sure. [ ]
A. how many
B. how old
C. how far
D. how tall
答案：D
19～25题所用到的数据如表1和表2所示。
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SQL语言中删除表的命令是______。
A．DROP TABLE
B．DELETE TABLE
C．ERASE TABLE
D．DELETE DBF