单项选择题 <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251103/8788384_0.jpg"><img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251103/8788384_0_1.jpg"><br/> A. 16. 67kA； B. 17. 27kA； C. 9. 09kA; D. 10. 91k