在借贷期间可定期调整的利率属于( )。
A.优惠利率
B.浮动利率
C.实际利率
D.基准利率
参考答案:B
--Would you like to go to the concert with me tonight?
--I’d love to, but of us two has tickets. Do you have some?
A.both
B.all
C.neither
D.nobody
圆柱齿轮在安装时为什么要满足一定的齿侧间隙?