三相异步电动机在启动的瞬间启动电流很大所以启动转矩也很大。
参考答案:错
________ that saw the rise of quite a number of new writers.
A.During the first half of the 18th century
B.That it was in the first half of the 18th century
C.It was in the first half of the 18th century
D.It was the first half of the 18th century
以下健康教育的主要任务正确的是()
A.建立或促进个人和社会对预防疾病和促进健康的大局观和全局责任感
B.促进个体和社会做出决策,选择自己最喜欢的健康行为
C.有效地促进全社会都来关心健康以及疾病预防问题
D.对卫生专业人员及有关人员进行健康教育原则及实践方面的培训
E.对老年人进行急救培训,减少突发疾病死亡率