【填空题】
查看正确答案A、用结点电压法求如图所示电路的U1和I。
<img src="https://img.ppkao.com/2019-05/leiyawen/2019051609333393120.jpg" />
搜题
更多“ 当θ＝<img src="https://nimg.ppkao.com/2018-09/yuanhao/2018090715590810959.jpg?sign=cfb33fb21f828178ade8d3c3feb7d7fa&t=62d3f2ec" />时，多元函数的变化率<img src="https://nimg.ppkao.com/2018-09/yuanhao/2018090715591972720.jpg?sign=75458f1f5b0fae88c7be0ae1e70f9a31&t=62d3f2ec" />的值为（）。”相关的问题
第1题
第2题
A、A.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081609061855082.jpg" />
B.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081609062737698.jpg" />
C.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081609063181144.jpg" />
D.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081609063676713.jpg" />
第3题
A、A.<img src="https://img.ppkao.com/2018-05/wujiake/2018051614232236611.jpg" />
B.<img src="https://img.ppkao.com/2018-05/wujiake/2018051614233286836.jpg" />
C.<img src="https://img.ppkao.com/2018-05/wujiake/2018051614233758003.jpg" />
D.<img src="https://img.ppkao.com/2018-05/wujiake/2018051614234426548.jpg" />
第4题
A、A.2
B.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120714483545055.jpg" />
C.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120714483937242.jpg" />
D.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120714484469853.jpg" />
第5题
A、A.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />三态，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />低电平
B.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />三态，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />高电平
C.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />高电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />高电平
D.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />高电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />高电平
第6题
A、A.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716370781231.jpg" />不变，<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716372262539.jpg" />增大
B.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716370781231.jpg" />减小，<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716372262539.jpg" />不变
C.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716370781231.jpg" />减小，<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716372262539.jpg" />增大
D.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716370781231.jpg" />增大，<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120716372262539.jpg" />减小
第7题
A、比较下图所示的两条粒度组成累积分布曲线所代表的A、B两个岩石的分选性优劣和平均颗粒直径大小。
<img src="https://img.ppkao.com/2019-04/leiyawen/2019041411091022258.jpg" />
第8题
A、A.<img src="https://img.ppkao.com/2018-04/zhouyun/20180412175605391.jpg" />
B.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041217562114745.jpg" />
C.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041217562651092.jpg" />
D.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041217562929580.jpg" />
E.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041217563332745.jpg" />
第9题
A、A.<img src="https://img.ppkao.com/2018-08/chenfang/2018081516571386102.jpg" /><img src="https://img.ppkao.com/2018-08/chenfang/2018081516572558372.jpg" />
B.<img src="https://img.ppkao.com/2018-08/chenfang/2018081516572062708.jpg" />
C.<img src="https://img.ppkao.com/2018-08/chenfang/2018081516572915872.jpg" />
D.<img src="https://img.ppkao.com/2018-08/chenfang/2018081516573482159.jpg" />
第10题
A、A.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018080116564316705.jpg" />
B.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018080116564929545.jpg" />
C.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018080116565492959.jpg" />
D.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018080116570158166.jpg" />
E.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018080116570766172.jpg" />
F.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018080116571469081.jpg" />
