题目内容

当管电压为一定值时，增大管电流，则连续X射线的线质强度和波长将发生（）。

A. 线质变软，强度变大，波长不变
B. 线质不变，强度不变，波长变短
C. 线质变硬，强度变大，波长变长
D. 线质不变，强度变大，波长不变

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Which three concerning the use of the java.io.Serializable interface are true？（）

A. Objects from classes that use aggregation cannot be serialized.
B. Art object serialized on one JVM can be successfully deserialized on a different JV
C. The values in fields with the volatile modifier will NOT survive serialization anddeserialization.
D. The values in fields with the transient modifier will NOT survive serialization anddeserialization.
E. It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable.

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