王某，20岁，不慎被金环蛇咬伤，以下哪一项不是咬伤后的临床表现（） 烦躁不安。 语言不清。 视物模糊。 皮肤粘膜出血。 肢体软瘫或麻木。
什么是正点行车？影响正点行车的因素有哪些？如何保证正点行车？
Which two statements are true about record groups?（） They are stored in the database. 。 They are stored in local Forms memory. 。 The type is specified explicitly at design time. 。 The type is implied by when and how it is created.。
You are connecting to an Oracle database server from a client by using the following connect string： SQL> CONNECT hr/hr@pdserver.us.oracle.com：1521/proddb Which naming method is being used in this case？（） Local Naming。 Easy Connect。 External Naming。 Directory Naming。
In Recovery Manager （RMAN）， you have set control file autobackup to ON by using the following command： CONFIGURE CONTROLFILE AUTOBACKUP ON； Which two events would cause the control file to be backed up automatically？ （） A tablespace is taken offline.。 The database instance is restarted.。 A new data file is added to an existing tablespace.。 A successful backup is recorded in the RMAN repository.。 The RMAN connection is disconnected from the target database.。
螺栓穿入方向应一致朝外且合理，螺栓拧紧后外露丝扣不小于（）扣。
