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单选题
Which of the following strings can be inserted into an XML column using XMLPARSE?（）
A
<employee/>
B
<?xml version='1.0' encoding='UTF-8' ?>
C
<!DOCTYPE hello SYSTEM 'hello_world.dtd'>
D
<x xmlns:ibmcert='http://www.ibm.com/certify'>
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Which of the following strings can be inserted into an XML column using XMLPARSE?（）A、"employee/"B、"?xml version='1.0' encoding='UTF-8' ?"C、"!DOCTYPE hello SYSTEM 'hello_world.dtd'"D、"x xmlns:ibmcert='http://www.ibm.com/certify'"
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