把3.06的小数点去掉是( ),它就( )到原数的( );把40.5的小数点移到最高位的左边是( ),它就( )到原数的( )。
306;扩大;100倍;0.405;缩小;
— Hurry up!It's already 8:20.
— ________ ! It takes only 20 minutes to get to the station and the train doesn't leave until 9:20. [ ]
A. No hurry
B. No way
C. No problem
D. No chance
降低交通噪音的措施有哪些?