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悬挂犁耕宽调整的目的是为了减少漏耕和()

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光伏电池组件电学特性测试中不必用到的设备是()。

A. 气压表
B. 电流表
C. 电压表
D. 滑动变阻器

简述营销管理的实施程序。

《中国残疾人事业“十五”计划纲要》时期的康复工作内容包括几方面?

A user sends you an email with the following error message: create table idtable(id number) * ERROR at line 1: ORA- 01110: data file 4: ,,/oracle01/oradata/orcl/users01.dbf ORA-27041: 01116: error in opening database file 4 ORA-unable to open file Linux Error: 2: No such file or directory Additional information: 3 You can choose from the following steps: a. Restore the missing database datafiles. b. Take the missing datafile offline. c. Shut down the database. d. Issue the recover tablespace USERS command. e. Issue the Startup Mount command to mount the database. f. Bring the USERS tablespace online. g. Issue the alter database open command. Which is the correct order of these steps in this case?()

A. b, a, d, f
B. c, a, e, b, d, f, g
C. c, e, d, g
D. b, d, f
E. e, d, g

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