船体扭曲变形最易发生在()上。
A.客船
B.拖船
C.槽管船
D.集装箱船
参考答案:D
多项式1+4x2加上一个单项式后,就能成为一个完全平方式,请你试一试并填空:1+4x2+( )=( )2
一_______ the sports meeting might be put off(推迟).
一Yes, it all depends on the weather.
A.I told
B.I’ve told
C.I’ve been told
D.I’m told