【简答题】Everyone says it is justified to learn a second language so we must learn one. (__);
【单选题】下面哪个单词是 观察器窗口,在其中能看到当前游戏物体中所有组件:( )
【单选题】在我国,当发生现金折扣时,采用 () 进行核算 。
【单选题】编写程序 y=dsolve('D3y-D2y=x','y(1)=8,Dy(1)=7,D2y(2)=4','x') 是为了求微分方程( )的解。
A.
y'''−y''= x, y(1) = 8, y'(1) = 7, y'(2) = 4
B.
y'''−y'= x, y(1) = 8, y'(1) = 7, y''(2) = 4
C.
y''−y''= x, y(1) = 8, y'(1) = 7, y''(2) = 4
D.
y'''−y''= x, y(1) = 8, y'(1) = 7, y''(2) = 4
【简答题】Everyone must learn ____________ (talk ) with others in the right way.
【单选题】To live remains an art which everyone must learn, and which no one can teach.
C.
生活仍然是人人必须学会而没有人教你的一种艺术。
【简答题】English ______ in meaningful situations. A) must learn B) is to learn C) has learnt D) must be learned
【单选题】在我国,当发生现金折扣时,采用()进行核算