pab是什么意思

We __________ (go) to school at half past six every morning要填什么形式啊?为什么呢? bob gets to school at half past six(同义句改写) Bob gets to school at half past six 改为同义句Bob---- ----- at half past 中间只有两个空!不能填三个单词! Bob gets to school at half past six .同义句改写 单词数量还是不变. 已知-π/2 已知α,β∈（-π/2,π/2）,且tanα,tanβ是方程x^2+6x=7的两个根,则α+β的值是?有助于回答者给出准确的答案 for two years 同义词改4个单词的 同义词! for years and years什么意思及同义词求解答 试确定6的2009次方加（-25）的2010次方的末尾数是几 for three years同义词求 试确定6的2009次方+（-25）的2010次方的末位数字是几 Wating For You Six Years he's been in Japan for six years.=it ___ six years ___ he came to Japan get l at up in six the thirty morning成句 He gets home at six thirty in the e____. She usually gets up at six thirty in the morning_____ ______ ______ She_____up in the morning I get up at six thirty in the morning（同上）划线部分是at six thirty 连词成句 get i at in up six thirty morning 急 解关于x的不等式kx+3k>0(其中常数k≠0), 解关于x的不等式(-1-kx)/6〉kx-6(k不等于0) It's six thirty.写同义句 It is six thirty 就划线部分提问 six thirty做提问词 请跟据答语写问 ________________________________?It is six thirty. 1：It's six thirty ( ) 解方程组：2x+5y=16 ,5x+2y=19（要过程）解方程组：2x+5y=16 ,5x+2y=19（要过程） 已知a/b+c=b/a+c=c/a+b=k,则函数y=kx+k的图像一定经过的象限是 当k＞0时,函数y＝kx的图像经过哪几个象限?当k＜0时呢? 已知k>0,则函数y=kx,y=-k/x的图像大致经过第几象限 当k>0时,函数y=kx的图像经过哪几个象限?当k>0,b 函数y=kx(k≠0)的图像过P(-3,7),则k= ,图像经过 象限? 已知-X+3y=5,求5（X-3y）²-8（X-3y）-5的值. 已知-x+3y=5,则5（x-3y）²-8（x-3y）-5 的值为