题目内容

7-1[音频]

A. Likes.
B. Safety.
C. Danger.
Dislike.

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7-2[音频]

A. Education.
B. Document.
C. Payment.
D. Action.

7-3[音频]

A. Idea.
B. Work.
C. Dream.
D. Opinion.

7-4[音频]

A. Internet connectivity.
B. Driverless vehicles.
C. Physical devices.
D. Big data.

7-5[音频]

AI.
B. TV.
C. PPT.
D. WIFI.