在英语考研难度选择题中，考生需要面对的不仅仅是词汇和语法，更是对文章理解和逻辑推理的考验。以下是一道典型的英语考研难度选择题：
题目：阅读以下短文，选择最合适的答案。
Short passage:
The rapid development of technology has brought about significant changes in our daily lives. One of the most notable changes is the widespread use of smartphones. Smartphones have become an indispensable part of our lives, offering us a wide range of functions, from communication to entertainment. However, this convenience comes at a price. The excessive use of smartphones has led to various health issues, such as eye strain, sleep disorders, and even mental health problems.
Question: Which of the following statements is NOT mentioned in the passage?
A. Smartphones have become an indispensable part of our lives.
B. The excessive use of smartphones has caused various health issues.
C. Smartphones can only be used for communication.
D. The passage suggests that we should reduce our reliance on smartphones.
答案：C
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