A:责无旁贷(dàì)吞噬(shì )
B:无与伦(lún)比 摒(bìnɡ)弃
C:毛骨耸(sǒnɡ)然伫(shù)立
D:面面相觑(qù) 迸(bènɡ)溅
The hospital has a new system to help ____(提供)the best service for the patients.
已知x=2y=1是二元一次方程组mx+ny=8nx-my=1的解,则2m-n的算术平方根( )
You can the coffee to see if there is enough sugar in it.