早教吧作业答案频道 -->英语-->
现在完成时和过去式的区别.Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedtoreportwhatthey.A.hadjustbeendreamingB.arejustdreamingC.justdreamtD.havejustbeendreaming为什么要用完成
题目详情
现在完成时和过去式的区别.
In this experiment,they are wakened several times during the night,and asked to report what they ________.
A.had just been dreaming B.are just dreaming C.just dreamt D.have just been dreaming
为什么要用完成时,而不用过去时?
In this experiment,they are wakened several times during the night,and asked to report what they ________.
A.had just been dreaming B.are just dreaming C.just dreamt D.have just been dreaming
为什么要用完成时,而不用过去时?
▼优质解答
答案和解析
In this experiment,they are wakened several times during the night,and asked to report what they ________.A.had just been dreaming B.are just dreaming C.just dreamt D.have just been dreaming 为什么要...
看了 现在完成时和过去式的区别.I...的网友还看了以下:
,角速率为1rad/s,设A为起点,那么t时刻点P在x轴上射影点M的速率为.如图,质点P在半径为r 2020-04-27 …
偏微分方程U(t)=U(xx)怎么解其次满足U(0,t)=0,U(pi,t)=0满足形式为U(x, 2020-05-13 …
关于传送带上的物体相对滑动距离问题传送带以v转动,一个物体放在上面经t时间加速后与传送带共速。那么 2020-05-21 …
初速度不为零的匀加速直线运动的位移公式物体初速度为v0,那么t时间内的位移是多少? 2020-06-22 …
信号与系统题求解~关于全响应一LTI系统,在相同的初始条件下,若当激励为f(t)时,其全响应为y1 2020-07-13 …
高数变上限积分求导问题!题目是这样的:曲线y=∫sin(x-t)dt(下限为0,上限为x)在点x= 2020-07-31 …
一个积分问题书上说这个积分:∫积分下限(mT)积分上限((m+1)T)exp(A*((m+1)*T 2020-08-02 …
I=U/RR一定时,I与U成正比U一定时,I与R成反比请问正比是怎么样?反比是怎么样?(是除还是X) 2020-10-30 …
I=U/RR一定时,I与U成正比U一定时,I与R成反比请问正比是怎么样?反比是怎么样?(是除还是X) 2020-10-30 …
得到一个很诡异的东东:0=∞为什么?根据物理热量的公式当R=0时Q1=IRt=I×0×t=0Q2=U 2021-01-04 …