原题
录音 1
What is the speaker's opinion about the process of developing a ballpoint pen?
AThe process led to improvements in printing techniques.
BThe process was more complicated than it might seem.
CThe process required components that were easily broken and difficult to use.
DThe process was inefficient until it began to rely on gravity.
正确答案：B
解题思路
老师暂未填写解题思路。