[单选题]
Which of the following is a fundu lne++m6b1)ty 3verm am*uv8*hrza:dyg ymxyi b o*x1 64r6 n)hental unit in the SI system?
A. kevin
B. volt
C. coulomb
D. joule
参考答案: A
本题详细解析: The fundamental units are kelvin, ampere, second, kiformjqc* jwf0d+ 2.jrp j2xd :i18j7slogram, metre, and mole and candel8d .2fm wx f*qji+:j dojsp27r0j1jcra