单选题 <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240620/14289610_0.png"><br/> <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20240620/14289610_0_1.png"><br/> 请在第____处填上正确答案。 56