题干

下列关于单项式一
5
x
y
3
2
的说法中,正确的是(      )

A:系数是-52,次数是4

B:系数是-52,次数是3

C:系数是-5,次数是4

D:系数是-5,次数是3

上一题 下一题 0.0难度 选择题 更新时间:2019-05-31 09:31:55

答案(点此获取答案解析)

A

同类题2

阅读理解

    Every city, in fact, can be felt by its warmth-not in terms of its natural climate but its human touch.

    About twenty years ago, I arrived in Australia. Searching for a place in a map in the street, I was approached by an elderly man who asked “How are you? Are you lost? How can I help you?”, which really impressed and warmed me. Another time, as I was pushing my bike on the sidewalk one night, a young lady shouted to me: “Carry me please” and then jumped onto my bicycle. While we had a little chat, she got where she wanted and hopped off my bike with “Thanks, bye!” At that moment, I had a sense as much of pleasant surprise as of “being trusted”.

    Still in Australia, two of my friends decided to hitch(搭便车)their way to Sydney in order to save money. A young driver stopped, and luckily he was also going to Sydney, so he let them in and even allowed them to drive while he went to sleep on the back seat. About eight hours later, they arrived and he woke up. Saying thanks to each other, they went their separate ways.

    In my opinion, no matter how developed and advanced it is, if in general a place presents itself with a cold and indifferent(冷漠的)face to people, especially to strangers, even keeping them highly alert(警惕的)not to be cheated all the time, can perhaps hardly be classified as a land of civilization(文明). In a sense, the attitude towards strangers that the people have in the city mirrors its warmth.

同类题5

为了更好地践行社会主义核心价值观,某社区开展“以优良家风,助推社会主义核心价值观”的社风建设活动。请你参与探究,并回答有关问题。

社区居委会主任张先生:当前,随着我国改革进程日益向纵深推进,人们思想意识呈现出独立性、选择性、多变性、差异性的特点,思想道德常常遭遇“两难选择”:“好人”能不能做?摔倒的老人能不能扶?面对这一阶段性特征,党的十八大报告把社会主义核心价值观概括为“富强、民主、文明、和谐,自由、平等、公正、法治,爱国、敬业、诚信、友善”24个字,既引领了社会思潮,凝聚了社会共识,又有力抵制了各种错误思想。

人大代表李女士:家是我们每个人生命的出发点,家风是我们每个人人格品质的精神根基。助推社会主义核心价值观,还得从我们的身边做起,从我们每个家庭营造好良好的家风做起。我们小学时学习过《朱德的扁担》,这不知丰富了多少中国人的童年。至今,我们追忆英雄,依然能从他们子孙后代身上看到他们昔日的影子。全国政协委员、从小在爷爷朱德身边生活的朱和平说,每个家庭都有自己的风格,对一个人的影响也是终生的,“忠诚、厚道、勤奋、努力”八个字就是朱家的家风。爷爷的言传身教,使他耳濡目染,也造就了他甘于奉献和牺牲、坚韧执着的品质;铸就了他今天在中国军用电子技术,特别是雷达装备上的突出贡献。可见,一个好的家风令孩子受益终生。家风正则民风淳、国风清。

社区中学生小王:参加了今天的社区活动,我受益匪浅。原来政治生活离我们并不遥远,践行社会主义核心价值观需要我们从身边做起,从一点一滴小事做起。