题目内容

天然含水量<45%,饲料干物质中粗纤维含量<18%,粗蛋白质含量≥20%的饲料是()。

A. 粗饲料
B. 能量饲料
C. 青绿饲料
D. 蛋白质饲料
E. 饲料添加剂

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ZD6型电动转辙机机体部分包括()等机件。

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A. Update all statistics on Table1 in DB1.
B. Use the CREATE STATISTICS statement in DB1 to create missing statistics on col3of Table1.
C. Set the priority boost server option to 1.
D. Execute the following statement.USE DB1GOCREATE INDEX index1 ON table1(col3)INCLUDE(col1, col2) WITH (ONLINE = ON)GO

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《煤矿安全规程》第10条文规定,每一入井人员必须随身携带自救器。()

A. 正确
B. 错误

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