近似数2.428 ×105精确到( ).
百
You’ve been working all morning — I think you _____a rest.
A.charge
B.admit
C.bargain
D.deserve
吸丝成形后的烟丝束由卷烟纸带动进入()卷成烟条,这种烟丝束形成过程从根本上解决了烟丝容易发生错位的这一弱点,为卷烟机的高速发展奠定了理论基础。