In this example we have run a Subject Heading search for Wearable Electronic Devices Which of the Subject Headings shown would be included in an Exploded search for Wearable Electronic Devices?多项选择题

题目图片
A

1. Smart Glasses and Hearing Aids ONLY

B

2. Smart Glasses ONLY

C

3. Fitness Trackers ONLY

D

4. All of them

E

5. None of them

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