题目内容

电阻器命名为RT表示？

A. 金属膜电阻器
B. 绕线电阻器
C. 碳膜点位器
D. 碳膜电阻器

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电阻在电路中的作用是？

A. 限流
B. 分压
C. 阻抗匹配
D. I-V变换

The world’s three major types of black tea are Qi Hong, Darjiling from _ and Uva from ____.

A. Pakistan; India
B. India; Pakistan
C. Sri Lanka; India
D. India; Sri Lanka

______ has the radiation-resistance effect and helps to keep one fit.

A. Oolong tea
B. Red tea
C. Dark tea
D. Green tea

______ tea reminds tea gourmets of gongfu tea.

A. Oolong tea
Black tea
C. Dark tea
D. Green tea