A:however may it cost
B:no matter how much it cost
C:however much it is cost
D:however much it may cost
①f(x)= −2x3 与g(x)=x −2x
②f(x)=|x|与g(x)= x33
③f(x)=x0与g(x)= 1x0
④f(x)=x2﹣2x﹣1与g(t)=t2﹣2t﹣1.
汤姆同学惊奇地发现:欧洲的地名与其他地区的地名非常相似,如大洋洲有新西兰(New Zealand),荷兰有西兰省(Zealand);美国有新奥尔良(New Orleans),法国有奥尔良(Orleans)。你对两者之间关系的合理解释是( )
32.4-1.8×18=____