低浓度逆流解吸塔操作时,若入塔液相浓度x1增加,而其它条件不变,则液相总传质单元数NOL(),出塔液相浓度x2(),出塔解吸气浓度y1()。
参考答案:不变;增加;增加
静脉曲张性外痔用:()
A.血栓剥离术
B.切除术
C.静脉丛剥离术
D.外剥内扎术
E.注射术
It was unwise of him to ____ the unreliable data in hisspeech. [ ]
A. refer to
B. add to
C. belong to
D. point to