试题一

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Before recording, check your webcam.

1

Before recording, check your webcam.

2

Before recording, check your webcam.

4

Before recording, check your webcam.

3

Before recording, check your webcam.

5

Before recording, check your webcam.

1

Before recording, check your webcam.

2

Before recording, check your webcam.

4

Before recording, check your webcam.

3

Before recording, check your webcam.

5