长陇坡中继站是三板溪水清测报系统的入厂中继站。（）
参考答案：错
All people, ________ they are old or young, rich or poor, have been trying their best to help those in
need since the disaster.[ ]
A. even if
B. whether
C. no matter
D. however
操作中的精馏塔，F、q、xD、xW、v1不变，减小xF，则有（）。
A、D增大，R减小
B、D不变，R增加
C、D减小，R增加
D、D减小，R不变
