下列各图中,表示物体处于匀速运动状态的是( ) A. B. C. D.

题型:选择题

问题:

下列各图中,表示物体处于匀速运动状态的是(  )

A.

B.

C.

D.

考点:匀速直线运动
题型:选择题

When Bill is very young, he loves picture. His mother often draws some for him on old pieces of paper. She is very bad at drawing, but bill likes her pictures and always wants more. Then, when he is a little older, Bill’s mother gives him some pencils and a drawing book, and he begins drawing pictures, too. But they are never good .When Bill is five years old, his mother gives him a small blackboard and some pieces of a baby on the blackboard, he draws lines(线条) and rubs(擦) them out too for ten minutes , but when he looks at his picture , he is not happy. “Well”, he says at last(最后) to his mother, “I’ll put a tail(尾巴) on it and make it a monkey.”  

小题1:Bill ___ when he is very young.

A.loves watching TV very much

B.often wants his mother to draw pictures for him

C.likes old pieces of paper very much

D.always wants his mother to buy pictures for him小题2:He is a little older, so his mother gives him ____ and lets him begin drawing pictures .

A.some paper and ink

B.a book and some pens  

C.some pencils and a drawing book

D.a blackboard and some old paper小题3:How old is he when he is trying to draw a baby on the blackboard?

A.He’s five years old

B.He’s fifteen years old

C.He’s fifty years old

D.He’s five like a cat小题4:Bill wants to put a tail in the picture , so _________ .

A.it looks like a duck

B.it looks like a dog

C.it looks like a monkey

D.it looks like a cat小题5:Which of the following sentences is right?

A.Bill’s mother does will in drawing.

B.bill isn’t bad at drawing.

C.There are three people in the story.

D.Bill isn’t happy when he looks at his picture of a baby

题型:选择题

焊条药皮的主要作用是在焊接过程中形成()性能的熔渣,保证电弧稳定燃烧,在电弧周围造成一种气氛,(),获得良好的焊缝等。

题型:选择题

急性硬膜外血肿

题型:选择题

供应链弹性是什么?

题型:选择题

当地上条件受限制时,且调压装置进口压力不大于()时,可设置在地下单独的建筑物内或单独的箱内。

A、0.2MPa

B、0.4MPa

C、0.8MPa

D、1.0MPa

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