稳压二极管工作在______区时,它两端的电压是稳定电压Vz。
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根据括号里的关键词来衔接句子。 (1). Income began at just over $ 30,000. Income went up dramatically to $ 80,000 in 2010. (and then) (2). There was a stable decrease to $10,000. The sales recovered to $55, 000 in 2015. (after which)
5. Describing the benefits of your products from your customers’ points of view which can be helpful in building and .