100t-120(t-0.5)要正确的,这题我一直搞不懂.

100t-120(t-0.5)要正确的,这题我一直搞不懂. 选用正确的时态填空,T^T Because you don't trust 要正确的回答. t-ara的正确读音t-ara怎么读啊? You’re Better Off-Erin Lang的歌词我要正确的歌词!度娘上没有 就算有也是错的.答出的话悬赏100 T T √2t²-√3t+√5=√3t²-2t没有一个正确的 我要的是正确的答案 上学期 matlab 解微分方程组超级新手,不会用Matlab.下面的微分方程组：e(t)+s(t)+q(t)+r(t)+i(t)=1;d e(t)/dt=3i(t)-0.2*e(t);d s(t)/dt=-10*i(t);d q(t)/dt=0.2*e(t)-0.5*q(t);d r(t)/dt=0.5*q(t);d i(t)/dt=7i(t);要函数,能做图,如果好的话 lnx÷(t×t×t×t×t)的不定积分是多少 判断,正确T,错误F 已知x=（t-1）/（t+1）,则用x的代数式表示t正确的是 i don't have friend与i don't have friends谁正确i don't have any friend与i don't have any friendsi don't have friend与i don't have friends哪两句是正确的?为什么 判断,正确的写T,错误的写F 阅读理解正确的写T,错误的写F. 正确的打T错误的打F Ben ,-----make any noise in the library.a .can't b.don't c.does,t正确的应该 We _call it a cat.A:doesn't B:aren't C:don't选择正确的词 We_call it a hen.A;doesn't B;don't C:isn't选择正确的词 一弹簧振子做简谐振动,周期为T,下列叙述正确的是A.若t时刻和 (t+△t)时刻的位移大小相等,方向相同,则△t一定等于T的整数倍B.若t时刻和 (t+△t)时刻的动能相等,则△t-定等于T/2的整数倍C.若△t