在某溶液中酚酞呈粉红色。下列离子在该溶液中不能大量存在的是[ ] A.K+ B.

题型:选择题

问题:

在某溶液中酚酞呈粉红色。下列离子在该溶液中不能大量存在的是[ ]

A.K+

B.Na+

C.Ba2+

D.Al3+

考点:离子共存
题型:选择题
阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
My ears are recently full of praising words from my friends such as, “ Oh, Beckham is so handsome, so cool that I can’t help falling in love with him!” or “What perfect skills he has!” Yeah,—I ______ to some degree, though I sometimes do want to______ them how much they know about Beckham, apart from his______ and how much they know about football apart from______ goals. It seems funny that we are______ about things, with which we are unfamiliar or about which we are______, but we all, my friends as well as I, consider this one of life’s______.
We need these pleasures to______ our lives. But that doesn’t______ to craziness or nonsense. As an old saying goes: “ Don’t judge a book by its cover.” We______ not judge anything from its appearance. We should all know, it is one’s good______ and great contribution that make one a star and unforgettable. Therefore we’d better say______ about Beckham’s good looks.
If we close our eyes, falling in deep______, we can find that the things that move us to be really happy or sad have a______ meaning. If we don’t go deeper and are just satisfied with______ things, sooner or later we will find that we have not really gained anything because our first______ has blinded and misled us, and we’ll remain ignorant______ we realize that and make some changes.
It is believed that thinking and going deeper than before is______ of great progress. If one day we are willing to go deeper into everything, no matter how much it______ us, we will finally prove how much we have______ up, how much more sensible, mature , and intelligent we have become.
小题1:
A.likeB.agreeC.hopeD.think
小题2:
A.askB.tellC.teachD.doubt
小题3:
A.skillsB.fameC.teachD.appearance
小题4:
A.kickingB.hittingC.scoringD.controlling
小题5:
A.thankfulB.crazyC.curiousD.anxious
小题6:
A.uncertainB.unhappyC.displeasedD.careful
小题7:
A.aimsB.qualitiesC.pleasuresD.truths
小题8:
A.keep upB.brighten upC.find outD.brighten about
小题9:
A.comeB.increaseC.amountD.rise
小题10:
A.daredB.wouldC.couldD.should
小题11:
A.thinkingB.characterC.looksD.ability
小题12:
A.moreB.somethingC.lessD.nothing
小题13:
A.loveB.sleepC.senseD.thought
小题14:
A.clearB.puzzlingC.movingD.valuable
小题15:
A.materialB.deepC.surfaceD.pleasant
小题16:
A.conclusionB.experienceC.lessonD.impression
小题17:
A.sinceB.althoughC.unlessD.before
小题18:
A.signB.causeC.valueD.willingness
小题19:
A.worriesB.painsC.satisfiesD.offers
小题20:
A.givenB.sentC.builtD.grown
题型:选择题

(1)某同学想探究平抛物体的运动规律,他可通过描迹或拍照片等方法来探究。实验时,先在竖直放置的木板上固定坐标纸,让小球做平抛运动,描出小球的运动轨迹;再以竖直向下为y轴方向,水平为x轴建立直角坐标系,测出轨迹曲线上某一点的坐标(xy),根据两个分运动的特点,利用公式y=          ,求出小球的飞行时间,再利用公式x=      ,求出小球的水平分速度,表达式为         

(2)下面做法中可以减小实验误差的是(   )

A.使用密度大、体积小的钢球

B.尽量减小钢球与斜槽间的摩擦

C.让小球每次都从同一高度由静止开始滚下

D.使斜槽末端的切线保持水平

题型:选择题

功效解毒利湿,通利关节,解除汞毒,对梅毒或因梅毒服汞剂中毒而致肢体拘挛者,功效尤佳,为治梅毒的要药,是指()

A.茯苓

B.土茯苓

C.白蔹

D.熊胆

E.白花蛇舌草

题型:选择题

踝关节在跖屈时,易内翻,损伤外侧的韧带

题型:选择题

担任总会计师,应具备()。

A、坚持原则、廉洁奉公

B、有较高的理论政策水平

C、主管一个单位或者单位内部一个重要方面的财务会计工作的时间不少于二年

D、身体健康

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