某精馏塔操作时,若保持 F、<img src="/lqwvjeImg/4d/4d38d6d54e0256175eeefd22fe2acbb2.png"style="width:32px;height:19px;"> 、q、D不变,增大回流比 R,则<img src="/lqwvjeImg/30/30d272cffe7bbad20db2225ef77944e2.png"style="width:25px;height:21px;">、<img src="/lqwvjeImg/2d/2d7234e4e091c2de5242665cd312a9f8.png"style="width:27px;height:24px;"> 的变化趋势是( )。<br>·<img src="/lqwvjeImg/18/18438218e4bd490f1d01aae206944a07.png"style="width:127px;height:31px;"><br>·<img src="/lqwvjeImg/d2/d212af99022f5ea8d2a1b5e45ceb0bfd.png"style="width:129px;height:25px;"><br>·<img src="/lqwvjeImg/44/441018b1590e6e3bceecc8672acaa445.png"style="width:131px;height:26px;"><br>·<img src="/lqwvjeImg/b7/b7f09943d3f0aae32c11e5bd052c8fb3.png"style="width:118px;height:25px;">