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  3. [originaltext]A smart card is a secure, portable, tamper-resistant data-storage

[originaltext]A smart card is a secure, portable, tamper-resistant data-storage

游客2025-06-19  9
问题  
A smart card is a secure, portable, tamper-resistant data-storage device.
选项 A、Smart card is light but can resist shock.
B、Smart card is convenient, safe and durable.
C、Smart card is the exact size of a credit card.
D、Smart card contains a computer with as much power as the original minicomputer.
答案 B
解析 单句意思为“智能卡是一种安全、便携且防损的数据存储工具”。A、C、D三项内容在录音单句中并未提及。
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