题干

水平桌面上,物体在力F的作用下向右运动,当它离开桌面时,假如所受一切外力同时消失,那么它将(   )

A:沿竖直方向下落

B:沿水平方向向右作匀速直线运动

C:作曲线运动

D:无法确定

上一题 下一题 0.0难度 选择题 更新时间:2017-03-21 12:21:08

答案(点此获取答案解析)

B

同类题1

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    Moving into a new home in a new neighborhood is an exciting experience. Of course, you want to make sure that you become an accepted and valuable part of your new neighborhood. The easiest way to accomplish this is to make sure you conduct yourself as a good neighbor should.____

    Perhaps one of the most important things you can do as a good neighbor is to keep your property(房产) neat, clean, and in good repair. ____By choosing to keep the outside of the home in great shape, you will help to improve the look and feel of the area.

    Second, take the overall appearance of the neighborhood seriously. When going for a walk. Take along a small garbage bag. ____This small act will let your neighbors know that you care about the area.

    ____ If a neighbor is going to be out of town, offer to collect mail and newspapers. If a neighbor suffers an illness, offer to do the grocery shopping. Let them know you are there to help in any way this acceptable, while still respecting the privacy of your neighbor.

    ____By following the basic rules of respecting others, taking care of what belongs to you, and taking pride in the appearance of the neighborhood in general, you will quickly become a good neighbor that everyone appreciates.

A. In general, keep an eye on their property while they are gone.

B.A good neighbor is also one who likes to help out in small ways.

C. Being a good neighbor is more or less about considerate behavior.

D. Sometimes neighbors may go to the supermarket together to do shopping.

E. Should you come across waste paper thrown out of a passing car, pick it up.

F. People tend to lake pride in keeping everything in their street fresh and inviting.

G. Here are a few tips to help you win over everyone in the neighborhood quickly

同类题5

阅读下面的文字,完成以下小题。

    “性格即命运”,这是舶来品。人的性格如何,确实影响着一个人的命运。但命运并不全然与性格相关。环境、条件、际遇有时比性格更能影响和决定人的命运。但一个人的性格对于人际环境、事业成败确实拥有不可小觑的强大影响力。

    性格在本质上是一种人生的特色,是个体生命区别于其他生命的一种标志。所以真正的人生是一种性格人生。世界上没有无性格的人,也没有性格相同的人,只有性格相近的人。就像树上的叶子,看似相同,其实不同。而性格的构成是人的气质、习惯行为方式、语言态度方式、脾气秉性等特点的综合外在表现,它具有相对的稳定性。说“江山易改,秉性难移”可能太绝对了,但只有在一个人身上相对稳定的那些东西才被称为性格。这“性”字有本性、习性的含义;而这“格”字既有品格也有定格的含义。因而,性格既反映人的本质的一个方面,又不与人的品质完全一致。比如有的人性格上看似温柔,但骨子里却很阴毒苛刻;有的人性格上看似暴戾,但心地却非常善良。性格是一种外在的表面的东西,性格的好坏本身,只是性格而已,并不能以此来判定一个人的品质优劣。

    因为性格具有相对稳定性、外在性的特征,所以对人的影响有时比品质的真实更大。人们在评价一个人时首先不是品质问题,而是看着你的感觉舒不舒服。更有许多交际是一次性的、短时期的,而人的品质的表露需要时间.所以,语言方式、态度、处事方式、个人习惯、喜恶等感情的表露,在很大程度上决定了他人对你的第一印象。即使在长期的人际生活中,性格也具有举足轻重的地位。

    性格的人际影响力大体上可以从三个方面来认识:

    性格的魅力。人的性格的人际魅力不在于相同,而在于不同。最有魅力的性格绝不是那种伪装、粉饰、压抑后的“标准”性格。一种真实的不掩饰的只属于你的,而不似他人的性格往往更能获得人际的引力。但这种人虽适合做朋友、当英雄,却很难成为领袖。

    性格的亲和力。“世俗标准”的性格尽管不具有个人魅力,但对大众具有亲和力。虽然这种人可能没人会成为他的朋友,他也永远不会是英雄,但却适合做领导。因为他会让人们觉得很舒服,至于他心里怎么想,人们倒不过多计较苛求。

    性格的破坏力。一切以自我为中心,处处不合时宜地显示自己,或者挖苦、打击、讽刺他人,无论对人际、对群体都有极大的破坏力,这种人只能是“孤家寡人”。这种人既不可做朋友,也不能当领导,也不会成为好下属。

    好在性格远非本质,性格也是会改变的。但应该改变的只是那令人不舒服的部分,而没有必要连同那份真实也抛掉,那就失去了自我。

(摘编自周殿富《你是老榆木,我便伐你做门槛》)