最小的一位数是零还是一

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日子头下面一个“文”是什么字? 日子头下面一个成是什么字 己知a是7的相反数,b比a大3,求a十b的值 在武动乾坤里,林动起身去参加种子名额的时候,青檀身边出现了一个神秘人,那个神秘人是谁?求速解 若|A|=7,B的相反数是2,则A+B的值是帮帮忙啊,明天要交 日子头的字有哪些 若7-a与-2互为相反数,则a的值为 若a—2和—7互为相反数,求a的值.很急,求解答! 醉翁亭记中宴酣之乐的场面具有哪些特点 以 How to Keep US Safe的作文 求内接于椭圆x^2/a^2+y^2/b^2=1,边平行于坐标轴的矩形中最大者的面积. 设当x≤0时,f(x)=1+x^2,x>0时,f(x)=e^(-x),求∫(1,3)f(x-2)dx f(x)={x^2 -1≤x≤0;x-1 0 to protect our plant what things you are s to do different places 这个词怎么读? 进口AISI316L不锈钢与AISI316L不锈钢有区别吗?AISI316L不锈钢与AISI304不锈钢有什么区别? 宴酣之乐非丝非竹的意思是什么? “宴酣之乐,非丝非竹”的意思 you're not alone i will always in your mind 请问这句话大概中文意思, someday i will miss my We first met on a train in 2000.We both felt immediately that we each other for years.AWe first met on a train in 2000.We both felt immediately that we each other for years.A.knew B.have known C.had known D.know What will become short if you add letter? How much would you ( ) for repairing my watch?A:spend B:cost C:charge D:pay别的为什么不对? How much do you ( ) for the new watch?A buyB payC spendD cost 在做电解水的实验室,因纯水不导电,需要在水中加一点酸,则通过电解槽的电流方向与哪种离子移动方向相同?有人说电路刚从电源正极流出时应最大,当电流经灯泡或电阻后应逐渐变小,你认为 第2题 AISI Grade 304 Error (10327):VHDL error at xd.vhd(17):can't determine definition of operator ""+"" -- found 0 pos初学VHDL~LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;ENTITY xd ISPORT (sel :IN std_logic;d0,d1 :IN std_logic;led :OUT std_logic);END ENTITY xd;ARCHITECTU vhdl VHDL error at dt.vhd(25):can't determine definition of operator ""="" -- found 0 possible delibrary ieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;entity dt isport(clk,ope,close:in std_logic;up1,up2,down2,down3:in std_logic;sto VHDL程序错误 Error (10482):VHDL error at washtop.vhd(33):object "o" is used but not declared求助library ieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;entity washerTop isport(load,start,clk :in std_logic;k :in std_logic_vector how much do you__ __ this book 钢管钢板钢梁的重量记算方法是什么?