单选题 Lee Arm Company collected the following amounts for subscriptions to the magazine it publishes during the past year:

A、 Date
B、 Amount Collected
C、 Subscription
D、 April 1
E、 $ 60000
F、 one year
G、 July 1
H、 $30000
I、 two years
J、 October 1
K、 $36000
L、 three years

【正确答案】 C

【答案解析】The subscriptions earned is the sum of $ 45000 ($ 60000×75% ), $ 7500 [($ 30000/2)× 0.51 and $3000 ($36000 divided by 3 years =$12000×3/12).