• A.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/103bd.png"><br/>
• B.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/12a05.png"><br/>
• C.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/150fe.png"><br/>
• D.<img src="http://timg.fentiku.com/javaimportItems/ddfeb3b982114e66bddd9efbf4889290/images/1779a.png"><br/>

正确答案：D