题干

下列运算正确的是(    )

A:-3(x-1)=-3x-1       

B:-3(x-1)=-3x+1

C:-3(x-1)=-3x-3          

D:-3(x-1)=-3x+3

上一题 下一题 0.0难度 选择题 更新时间:2018-12-24 08:59:11

答案(点此获取答案解析)

D

同类题2

阅读下面短文,从短文后各题所给四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

    I went to a dinner party at a friend's home last weekend and met her five-year-old daughter for the first time. Little Maya was all curly brown hair, dark eyes, and lovely 1 her shiny pink nightgown ( 睡裙) .I wanted to say, “Maya, you're so2!

    Turn around and model that pretty gown for me. You're beautiful!” But I didn't.

    “Maya,” I said,3into her eyes, “it's very nice to meet you.”

    “ Nice to meet you, too.” She said, in that4, talking-to-adults, good girl voice.

    “Hey, what are you reading?” I asked. Her eyes got bigger, and the practiced, polite facial 5gave way to real excitement over this6. But she seemed too7 to answer me.

    “I love books,” I said. “Do you?”

    Most8do.

    “Yes,” she said. “And I can9them all by myself now!”

    “Wow,10!” I said. And it is, for a five-year-old.

    “What's your favourite book?” I asked.

    “I'll go and get it! Can I read it to you?”

    Purplicious was Maya's11, and a new one to me, as she sat next to me and12read aloud every word. Then I told her that I'd just13a book, and that I hoped she'd write one, too, one day. She was crazy14 that idea. We were both sad when Maya had to go to bed,15I told her next time to choose another book and we'd read it.

    Try this the next time you meet a little girl. She may be16and unsure at first, because few people ask her about her17, but be patient and stick with it. Ask her what she's reading. What does she like and dislike, and why? You're just18 an intelligent (明智的) conversation that respects her brain. Tell her about your19 and accomplishments, and your favourite books. Set a good example for her of what a 20woman says and does.

同类题3

不经风雨不见彩虹,正是穿插于其中的挫折与坎坷,才使人感到人生的价值和生命的五彩缤纷。

请以“感悟挫折”为题,在班里组织一次演讲比赛。为了搞好这次活动,请你来担任策划人,你能出色完成任务吗?

我的活动设计方案:

(1)活动目的:_______________________  。

(2)活动准备:搜集中外名人勇于战胜困难和挫折而取得成功的典型事例或者名言警句,也可以调查了解身边的朋友、亲人历经生活的磨砺取得事业成功的典范。以“感悟挫折”为主题写一篇 500 字左右的演讲稿。

①典型事例有(至少 2 个): __________________________________________________。

②名言警句(至少 3 句):___________________________________________________。

③演讲提纲:_____________________________________________________   。

(3)布置活动要求。参加活动人员分小组进行预选,分六个小组,每组推选两名优秀代表进行演讲比赛,聘请语文教师、思想品德教师六至八人组成评委,参赛成员设一、二、三等奖。

(4)确定活动时间及地点以及参赛顺序等具体事项,活动完成要有小结,老师或参赛同学都可作总结发言。

我的感受:

(5)通过活动,我最大的感受是:__________________________________________________。

我的行动:

(6)我就从面对眼前的_____________________挫折开始。

(7)战胜挫折后我会:_____________________________________________________   。