单项选择题
A. The client and server have different NLS_LANGUAGE settings
B. The client and server character sets are not the same，and the database character set is not a strict superset of the client character set
C. The client and server are in different time zones
D. The client requests automatic data conversion
E. The AUTO_CONVERT initialization parameter is set to TRUE
单项选择题 InadatabasewiththedatabasecharactersetofUS7ASCIIandanationalcharactersetofUTF-8，whichdatatypeswouldbecapableofstoringUnicodedatabydefault？（）
单项选择题 What can you determine about the following linguistic sorts based only on their names？（） 1. GERMAN 2. FRENCH_M
多项选择题 WhichofthefollowingarevalidsettingsfortheNLS_COMPparameter？（）