单项选择题

The （）is a temporary storage area that you can use to copy or move selected text or objects among application.

A．cache
B．pool
C．buffer
D．clipboard

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单项选择题

A．＜input type="text" name="T1" size="20"＞
B．＜textarea rows="1" name="T1" cols="20"＞＜/textarea＞
C．＜input type="radio" value="T1" checked name="R1"＞
D．＜select size="1" name="T1"＞＜/select＞

单项选择题

In C language,the result of the logical （）operator is 1 if the value of its operand is 0,0 if the value of its operand is non-zero.

A．AND
B．NOT
C．OR
D．EOR