• A.<img src="https://timg.fentiku.com/javaimportItems/30c5221cd07a456e971fcdfa5659a068/images/3f2a0.jpg"><br/>
• B.<img src="https://timg.fentiku.com/javaimportItems/30c5221cd07a456e971fcdfa5659a068/images/3f871.jpg"><br/>
• C.<img src="https://timg.fentiku.com/javaimportItems/30c5221cd07a456e971fcdfa5659a068/images/3fd20.jpg"><br/>
• D.<img src="https://timg.fentiku.com/javaimportItems/30c5221cd07a456e971fcdfa5659a068/images/4025c.jpg"><br/>

正确答案：B