电功率和电压、电流的关系式:P=______,变形得I=______.从变形公式 发布时间:2017-05-23 20:27 │ 来源:www.tikuol.com 题型:填空题 问题: 电功率和电压、电流的关系式:P=______,变形得I=______.从变形公式中可以看出,家庭电路中的______是一定的,用电器的______电路中的电流就越大.
题型:填空题 下面每句中A,B,C,D四项有一项是错误的,请指出并在后面的横线上改正。( ) 1. How heavyer are you? A B C D ( ) 2. Look! The monkeys are eat bananas. A B C D ( ) 3. These are my shirts. It's mine. A B C D ( ) 4. That's a jacket. It's brown jacket. A B C D ( ) 5. —Are everyone here now? —No, Jim and Tom aren't here. A B C D ( ) 6. A man behind the tree is my mother's brother. A B C D 查看答案
题型:填空题 男,31岁,不规则发热1个月。查体:二尖瓣区舒张期隆隆样杂音,主动脉瓣区舒张期叹气样杂音,心率100次/分,律齐。某日突然左侧偏瘫。最可能的原因是风心病合并()A.风湿热 B.短暂性脑缺血发作 C.亚急性感染性心内膜炎伴脑栓塞 D.蛛网膜下隙出血 E.脑出血 查看答案