单词：symmetrical alternating voltage
单词：symmetrical alternating voltage 相关文章
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用Mp3背六级单词
[0:0]virtue virus vision vital美德，德行 病毒 幻想，视觉 极其重要的 [0:35.0967]vivid volcano voltage voluntary生动的，鲜艳的 火山 电压 自愿的，志愿的 [1:17.2033]volunteer vote wage wagon志愿者 票，选票 工资，报酬 四轮马车，大篷车 [1:57.9174]wander w
闭着眼睛飘单词 四级词汇
Flawless pearls are among the most symmetrical spheres biological organs. But do they get so round? Turns out they turn. Pearls and mollusks such as oysters create so-called pearls acs around intrusive pieces of grit. The sac coat the yelten with the
Scientific American(六)月
China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co
2017CRI中国国际广播电台
Science and technology 科学技术 Health indicators 健康指标 On the face of it 从表面判断 More evidence that symmetrical features indicate good health 更多证据表明对称容貌显示身体健康 BEAUTY may be in the eye of the beholde
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