MybirthdayisJuly5th,andTom'sbirthdayisDecember.()A.in;onB.on;inC.at;inD.on;at
My birthday is______July 5th,and Tom's birthday is ______December.( )
A. in; on
B. on; in
C. at; in
D. on; at
根据句中出现的July 5th,"七月五日",指的是具体的某一天,前面的介词用on;December指的是十二月,在月份前面用介词in,故选B.
hearrived _ Shanghai _ 6:00_the morning of June 2 2020-05-16 …
单项选择:The price of the car increased_____10%_____o 2020-05-16 …
come and see () yourself()Huaxing Clothes Store!A 2020-05-16 …
How about the number of the workers( )the meeting 2020-05-16 …
main(){unionEXAMPLE{struct{intx,y;}in;inta,b;}e;e 2020-06-12 …
设A是n阶方阵(不一定是对称阵),二次型f(x)=xTAx相对应的对称阵是()注:T代表转置(A) 2020-06-18 …
设A,B均为n阶方阵,x=(x1,x2,…,xn)T,且xTAx=xTBx,当()时,A=B.A. 2020-07-25 …
在控制工程中,指数函数e^at*1(t)为什么表示成这样,而不是e^at 2020-08-02 …
高数达人请进!微分方程问题已知:微分方程y'+ay=f(x)a>0得到通解为y(x)=e^(-ax 2020-08-02 …
积分变换中的u(t)e^(-at)*u(t)的fourier变换等于e^(-at)的然而sin(wt 2021-01-07 …