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搜题
【单选题】
超声波美容仪的其输出波型为()A.
超声射束不间断地发射，强度不变
B.
超声波射束不间断地发射，强度有变化
C.
超声波射规律间断发射，持续时间短
D.
超声射束无规律间断发射，持续时间短
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反馈参考答案：
举一反三
【单选题】新民主主义社会时期,民族资产阶级是一个具有两面性的阶级,即( )
A.
既有革命性的一面,又有妥协性的一面
B.
既有剥削工人的一面,又有愿意接受社会主义改造的一面
C.
既有剥削的一面,又有被剥削的一面
D.
既有革命的一面,又有反对革命的一面
【单选题】You have joined a new organization as a Database Administrator. The Security Administrator in your organization has kept human errors， such as erroneously dropping users， tables， and important data， t...
A.
Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
B.
Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement while the database is up and running.
C.
Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command. Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
D.
Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
【简答题】In this your new job, remember you did _______ your job; and not your job, you. You may be _______ for the new job; but your company is luckier for ________ you. Congratulations.
【简答题】You’ll be _____ missed by everyone here, and we wish you success in your new job.
【判断题】1) Besides the duties related to the work you’re hired for, you also need to learn some other things to fit in your new job.
A.
正确
B.
错误
【多选题】由于民族资产阶级是一个具有两面性的阶级,在民主革命时期,中国对其采取的政策是( )
A.
又联合又斗争
B.
在政治上争取它，对其动摇性和妥协性进行批评和斗争
C.
在经济上实行由限制到逐步消灭民族工商业的政策
D.
在经济上实行保护民族工商业的政策
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