2\times 400=15\times 5=7\times 111=12\times 7=820-262=202\times 4=308+368=250\div 5=750-340=204\times 7=80\times 9=271-119=69\times 6=240\div 8=33\times 6=41\times 2=178+386=65\times 4=402\times 5=674-396=8\times 126=评价505+681=32\div 8=70\times 4=6\times 1...
【解析】 $$ 3 4 \times 1 0 2 \\ = 3 4 \times ( 1 0 0 + 2 ) \\ = 3 4 \times 1 0 0 + 3 4 \times 2 \\ = 3 4 0 0 + 6 8 \\ = 3 4 6 8 $$【加法运算】1.加法交换律:两个加数交换位置,和不变.如a+b=b+a2.加法结合律:先把前两个数相加,或先把后两个数相加...
电压范围:额定电压×(1±20) 功率消耗:每通道功率消耗1W(DC220V) 2.1.6 开关量输出 机械寿命:10000 次 接通容量:1000W,L/R = 40ms 导通电流:连续5A,短时(200ms)30A 断开容量:30W,L/R = 40ms 2.2 主要技术性能 电压元件:整定值容许误差应不大于±3;过压返回系数 0.95,欠压返回...
东安格利亚大学(University of East Anglia,简称UEA),又译东英吉利大学,成立于1963年,是一所位于英国英格兰诺里奇的一流学府。诺里奇市是英国最宜居城市(Times 2017--2021),也是英格兰唯一一座“欧洲最美城市”(CNN 2019),还是一个生机盎然...
The 17" ThinkPad P17 Gen 2 Mobile Workstation laptop delivers, with Intel® Core™ or Intel® Xeon® processors, NVIDIA RTX™ graphics and features to make hard work easier.
【解析】 解: $$解: 4 0 4 \times 2 5 \\ = ( 4 0 0 + 4 ) \times 2 5 \\ = 4 0 0 \times 2 5 + 4 \times 2 5 \\ = 1 0 0 0 0 + 1 0 0 \\ = 1 0 1 0 0 $$ 故答案为: 10 100乘法分配律 结果一 题目 【题目】怎样简便就怎样算$$ 2 5 \times 4 0 4 $$ ...
【答案】 $$ 4 0 0 4 \times 2 5 \\ = ( 4 0 0 0 + 4 ) \times 2 5 \\ = 4 0 0 0 \times 2 5 + 4 \times 2 5 \\ = 1 0 0 0 0 0 + 1 0 0 \\ = 1 0 0 1 0 0 $$ 故答案为: 100 100 【点评】 熟练运用乘法的分配律进行计算. ...
The Western Digital PC SN530 NVMe™ SSD is designed for a multitude of applications that require both high performance and low power. The device is not only capable of more than three times the read speed over SATA SSDs, but further optimizes the lo
Secure victory with 990 PRO's expanded 4TB capacity, empowering you with a random read speed of up to 1,600,000 IOPS. Witness faster loading times on your PC and PlayStation® 5, as it breathes life into your games. Samsung Magician Software ...
如图所示“侦探猎犬”超音速汽车,其最大车速可达1609km/h.在某次测试中,该车以400m/s的速度匀速直线行驶了2000m,受到水平方向的阻力为2×105N,则此过程中,汽车牵引力所做的功是___