Which three statements concerning the use of the java.io.Serializable interface are true？（） Objects from classes that use aggregation cannot be serialized。 An object serialized on one JVM can be successfully deserialized on a different JVM。 The values in fields with the volatile modifier will NOT survive serialization and deserialization。 The values in fields with the transient modifier will NOT survive serialization and deserialization。 It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable。
安装中心钻时，需用（）紧固。 内六角扳手。 管钳。 活扳手。 螺丝刀。
You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation？（） The backup as copy can only be taken to disk。 The backup as copy can only be taken to tape。 Backup can be performed only when the instance is shutdown。 Backup will constitute all used and unused blocks in the database。
Given that c is a reference to a valid java.io.Console object，which two code fragments read a line of textfrom the console？（） String s = c.readLine（）；。 char[] c = c.readLine（）；。 String s = c.readConsole（）；。 char[] c = c.readConsole（）；。 String s = c.readLine（"%s"， "name "）；。
按燃气流动方向，常安装在阀门下侧的附属设备是（）。 放散管。 排水器。 补偿器。 绝缘法兰。
Which interface provides the ability to aggregate values across a cluster in parallel using Filters ？ （）
