• A.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/31eb7.png"><br/>
• B.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/341c5.png"><br/>
• C.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/3654e.png"><br/>
• D.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/38758.png"><br/>

正确答案：C