为您找到"
ab.cbcb us
"相关结果约100,000,000个
Us ＄30.00.3. When will the goods be shipped?Auyust 2009.4. What are the terms of payment?By letter of credit.5. Where are the goods to be sent to?Vancouver Canada.翻译题.Trade agreement贸易协定 ...
解：求等效电压Uoc=u。根据KVL分别列出回路电压方程：左侧回路：2i+3u=5；右侧回路：u=-20i×25 /1000。解方程组：i=10（mA），u=-5（V）。所以：Uoc=-5V。求Req。1、用Uoc/Isc，将a、b短路，短路电流如图Isc...
(1)证明：因为三角形ABC为等边 所以角B=角C=60度 又因为OB=OD=OC=OE 所以角DOB=角EOC=60度 所以角DOE=60度 又因为OD=OE 所以三角形ODE为等边三角形 （2）成立 因为OB=OD 所以角B=角BDO 因为BOEC为内接四边形 ...
电压源输出电流：Us/[R+（R+R）∥（R+R）]=Us/（2R）=5/（2×1）=2.5（A）。所以两个并联支路的电压为：2.5×[（R+R）∥（R+R）]=2.5×R=2.5（V）。U'AB=2.5×R/（R+R）=2.5/2=1.25（...
herve Leger Strapless Bandage gown on the internet store as well as anxious with all the audience wow gold us came,Christian Louboutin Evenings, after which it alluring outlet Herve Leger possibly you like going...
56.What prevented you from joining us last night? 57.One of the boys in the class had a fever and he soon infected other children. The 10th Day 1- 40:ACADDABBCCCCBCBACCDBABDBACAABACBDDACCBCB 41.is taught 42....
|a+b|=2=根号下(a+b)^2=根号下a^2+2ab+b^2 因为|a|=2.|b|=1 所以=4+2ab+1=2 ab= -1/2 |a-b|=根号下a^2-2ab-b^2 ab= -1/2 a|=2.|b|=1 所以等于根号6 ...
1-5BABCA 6-10BCBCB11-15CAACB 16-20 CABCC 21-25 DCABB 26-30 DACBB31-35AADCB 36-40 AEGCD 41-45CDBAB 46-50 DACBD51-55ACCBA 56-60DCBAA61.in 62.it 63. tocontinue 64. driving 65.absolutely 66. a67....
56.What prevented you from joining us last night? 57.One of the boys in the class had a fever and he soon infected other children. The 10th Day 1- 40:ACADDABBCCCCBCBACCDBABDBACAABACBDDACCBCB 41.is taught 42....