某物体的机械能是45J,势能是45J,则该物体一定是____________的(

题型:填空题

问题:

某物体的机械能是45J,势能是45J,则该物体一定是____________的(填“运动”或“静止”),且动能为_________J。

考点:动能的概念势能的概念
题型:填空题

“大将筹边尚未还,湖湘子弟满天山。新载杨柳三千里,引得春风渡玉关。”这首诗是赞颂[ ]

A.左宗棠收复新疆

B.曾纪泽收回伊犁

C.刘永福抗法

D.林则徐广州硝烟

题型:填空题

阅读短文用合适的单词填空。

     My name is John Black. I come from England. I study in a middle school in London. My father

teaches Chinese in a school. My mother doesn't work. She stays at home and does the housework.

I go to school five days a week. I like playing football and listening to music. I don't have much

homework to do. After school, I help my mother do the housework. I love my father and mother.

     John is an _____ (1) boy. He is a middle school _____ (2). His father is a _____ (3). His mother

has no _____ (4). John doesn't go to school on _____ (5) or _____ (6). He _____ (7) playing football.

He _____ (8) have much homework to do. He often _____ (9) his mother do the housework. He is

a _____ (10) boy.

题型:填空题

Many people think that some hobbies can _______ the way _______ school work. [ ]

A. get up; at

B. get off; on

C. get on;

D. get in; of

题型:填空题

中国的抗日战争具有两个战场并存的特点,其主要原因是[ ]

A.国共两党协商决定开辟两个战场

B.中共开辟了敌后抗日根据地

C.国共两党阶级属性的差别

D.国共两党执行两种不同的抗战路线

题型:填空题

正槽式溢洪道由()五部分组成。

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