A、<span style="font-size:16px;font-family: 'Times New Roman','serif'">h<sub>f</sub></span><span style="font-size:16px;font-family:宋体">与</span><span style="font-size:16px;font-family:'Times New Roman','serif'">λ</span><span style="font-size:16px;font-family:宋体">都增大</span>
B、<span style="font-size:16px;font-family: 'Times New Roman','serif'">h<sub>f</sub></span><span style="font-size:16px;font-family:宋体">与</span><span style="font-size:16px;font-family:'Times New Roman','serif'">λ</span><span style="font-size:16px;font-family:宋体">都减小</span>
C、<span style="font-size:16px;font-family: 'Times New Roman','serif'">λ</span><span style="font-size:16px;font-family:宋体">不变,</span><span style="font-size:16px;font-family:'Times New Roman','serif'">h<sub>f</sub></span><span style="font-size:16px;font-family:宋体">增大</span><span style="font-size:16px;font-family:'Times New Roman','serif'"> </span>
D、<span style="font-size:16px;font-family: 'Times New Roman','serif'">λ</span><span style="font-size:16px;font-family:宋体">减小,</span><span style="font-size:16px;font-family:'Times New Roman','serif'">h<sub>f</sub></span><span style="font-size:16px;font-family:宋体">不变</span>