题目内容

驰名商标只在商标注册国受到法律的保护。

A. 对
B. 错

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绿色包装策略是指包装材料使用可再生、再循环材料，包装废弃物容易被处理及对生态环境有益的包装。

A. 对
B. 错

A multimeter is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter may include features such as the ability to measure voltage, current and ().

A. gain
B. resistance
C. capacitancen
D. inductance

The central knob of digital multimeter has several positions. To measure small current, set the multimeter to (). To measure large current, set the multimeter to 20A.

A. Ω
B. mA
C. V ( V-V～ )
D. 20A

The resistance of a light sensor in bright light is () that in the dark.

A. larger than
B. the same as
C. smaller than
D. 10000 times higher than