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下列SQL语句能实现的功能是( )。 SELECT*FROM 仓库 WHERE 仓库号="WH1"; UNION; SELECT * FROM 仓库 WHERE 仓库号="WH2"A．查询在WH1或者WH2仓库中的职工信息B．查询仓库号为WH1或者WH2的仓库信息C．查询即在仓库号为WH1，又在仓库号为WH2工作的职工信息D．语句错误，不能执行
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Water, when boiled, always ______ steam.A. gives inB. gives upC. gives offD. gives away
给出在仓库“WHl”或“WH2”工作，且年龄小于40岁的职工号和姓名，正确的命令是（ ）。A)SELECT 职工号，姓名 FROM 职工：WHERE 年龄<40 AND 仓库号=”WH1”OR 仓库号=”WH2”B)SELECT职工号，姓名 FROM 职工；WHERE年龄<40 AND(仓库号=”WH1”AND 仓库号=”WH2”)C)SELECT职工号，姓名 FROM 职工；WHERE年龄<40 OR 工仓库号=”WH1”OR 仓库号=”WH2”D)SELECT职工号，姓名 FROM 职工：WHERE年龄<40 AND(仓库号=”WH1”OR 仓库号=”WH2”)
He is a heavy smoker and even his hair__________the smell of cigarettes．A.gives up B.gives away C.gives off D.gives in
The book provides a concise analysis of the country's history.A:clean B:perfect C:real D:brief
In her newly-published book Judy indicates that women have been politically dis-empowered （ ）human history.A.across B.throughout C.over D.within
Washington Irving.s most famous book The Sketch book contains（）AThe Legend of Sleepy HollowBRip Van WinkleCA History of New YorkDBoth A and B
