题目内容

Amy seldom use Bluetooth headset.

A. 对
B. 错

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The PBR Company used sensor technology to develop Bluetooth headset.

A. 对
B. 错

Bluetooth headset makes their users talk easily without annoying wires.

A. 对
B. 错

Richard is satisfying with his job and salary.

A. 对
B. 错

在单行文本中要输入直径符号，应输入：()

A. %%p
B. %%o
C. %%d
D. %%c