企业预计全年现金需要总量为36万元,短期有价证券年利率为10%,一次交易成本为125元,要求计算最佳现金持有量为()万元。
A.4
B.3
C.2
D.1
参考答案:B
祖冲之是世界上第一个把圆周率计算到小数点后第七位的人。[ ]
Jim didn’t get enough ________. He felt so ________ that he fell ________ soon.
A.sleeping, sleepy, asleep
B.sleep, asleep, sleepy
C.sleepy, sleeping, asleep
D.sleep, sleepy, asleep