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【单选题】
查询tb_001数据表中id=1的记录,语法格式是什么?A.
select * into tb_001 where id=1;
B.
select * where tb_001 where id=1;
C.
select * delete tb_001 where id=1;
D.
select * from tb_001 where id=1;
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举一反三
【单选题】Oh, it’s you! I _______________ about our meeting here.
A.
have never dreamed
B.
had never dreamed
C.
never dream
D.
never dreamed
【单选题】—Have you _____ visited the old house by the river? —No, _____. [ ]
A.
ever; ever
B.
ever; never
C.
never; ever
D.
never; never
【单选题】— You do have the book I've been looking forward to? — Ha, sure. I ____ if I didn't. [ ]
A.
would never have called
B.
hadn't called
C.
won't call
D.
wouldn't be calling
【单选题】对于反应 Cl 2 (g) + 2NO(g) 2NOCl(g) ,实验发现,如两反应物浓度都加倍,则反应速率增至 8 倍。该反应的级数是
A.
0
B.
1
C.
2
D.
3
E.
1/2
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