问题
单项选择题
Passage One
When does the speaker say that another significant change in instrument design took place
A．In the early 19th century.
B．In the late 19th century.
C．In the early 20th century.
D．In the mid-20th century.
答案
参考答案：A
解析：
[分析]： 事实细节的找寻和判断。 原文指出This... is not the first such revolution in musical history...(这里的This即指电子乐器出现这一乐器革命)，由此可判断其后句Remember we’ve already studied the similar case in the early 19th century when the piano replaced...中的the similar case“相似情况”即指题干中关键词another significant change“另一次重要变革”。由此可见，除这次电子乐器产生的乐器革命外，历史上另一次乐器的重大变革应发生在19世纪早期，因此 A项内容是正确答案。[解题关键] 根据题干关键词对原文上下文进行判断。