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【简答题】
Radical Republicans in Congress, however, denounced the plan for being too ________on the South and for not securing any rights for the freed slaves.
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反馈参考答案：
举一反三
【简答题】有平行反应在平推流反应器中进行 A→P 目的产物 r P = k 1 c A A→S 副产物 r S = k 2 c A 2 其中 k 1 =1h -1 , k 2 =1.5m 3. kmol -1. h -1 , c A0 =5kmol.m -3 , c p0 =c s0 =0 ,体积流率为 5m 3. h -1 ,求转化率为 90% 时出口目的产物的浓度 c p 。
【简答题】communication system
【单选题】The aviation communication system consists of airborne communication system on the plane and communication system on the ground, which can be used for , , and plane-to-plane communication.
A.
captain to F/O, F/O to Captain
B.
Pilots to ATC, ATC to Pilots
C.
air-to-ground, air-to-air
D.
Flight to Airline, Airline to Flight
【单选题】In a data communication system, the transport media with the widest frequency band and best reliability is the( ).
A.
radio channel
B.
coaxial cable
C.
twisted--pair cable
D.
fiber optic cable
【简答题】The aviation communication system consists of airborne communication system on the plane and communication system on the ground, which can be used for , , and plane-to-plane communication.
【单选题】Beijing is a pleasant place with convenient transportation and communication system.
A.
shocking
B.
pleasing
C.
boring
D.
surprising
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