若一个三角形的任意两边都不相等，则称之为不规则三角形。用一个正方体上的任意三个顶点构成的所有三角形中，不规则三角形的个数是（  ）

常温下，将amol/L的MOH(可溶性弱碱)与bmol/L的盐酸等体积混合，已知相同条件下MOH的电离程度大于M⁺的水解程度，则下列有关推论不正确的是（）

关于导体电阻的大小，下列说法中正确的是（  ）．

选出正确的答语。
A、It's on the chair .          B、Here you are .
C、Yes , I do .                    D、My name is Amy .
E、I'm fine , thank you .    F、It's white .
G、Thank you .                 H、Happy New Year !
I、It's a cat .                      J、It's four o'clock .

⑴What colour is it ?____           

⑵Happy New Year !____          

⑶Where is the pen ?____          

⑷How are you ?____              

⑸Do you like dogs ?____         

⑹What's your name ?____        

⑺Pass me the pencil , please .____ 

⑻What's the time , please ?____   

⑼What's this ?____               

⑽Happy birthday !____           

已知 ${\left(x^2\text{-}2x\text{-}3\right)}^{10}\text{=}{a}_0+a_1\left(x\text{-}1\right)+a_2{\left(x\text{-}1\right)}^2+\cdots +a_{20}{\left(x\text{-}1\right)}^{20}$