[单项选择]某公司向银行借款，贷款年利率为6%。第1年初借款100万元，每年计息一次；第2年末又借款200万元，每半年计息一次，两笔借款均在第3年末还本付息，则复本利和为( )万元。
A. 324.54
B. 331.10
C. 331.28
D. 343.82

What did the first bicycles look like The earliest bicycles were called "running machines". The rider sat on the seat of the "machine" and pushed it with his feet, The rider ran with his feet but the wheels of the bicycle helped him to go very, fast. These bicycles went faster than a running man but they were very uncomfortable. The wheels were iron and in those days the roads had many holes and big stones.
There was another kind of old bicycle with a big wheel in the front and a small one behind. People called these bicycles "Penny Farthings". In England, many years ago, there were two coins called a penny and a farthing. The farthing was about a quarter of the size of a penny.
The big wheel had pedals. The rider sat on the seat at the top of the big wheel and pushed the pedals with his feet. "Penny Farthings" went much faster than "running machines" because of the big wheel, but were uncomfortable, too. T
A. people have to run on feet when using the machines
B. they were faster than running men
C. the riders could run on the bicycles
D. the bicycles could run fast automatically