针对应用在运行期的数据特点,修改其排序算法使其更高效,属于()维护。 A.正确性 B

题型:单项选择题

问题:

针对应用在运行期的数据特点,修改其排序算法使其更高效,属于()维护。

A.正确性

B.适应性

C.完善性

D.预防性

考点:中级软件设计师系统开发和运行系统开发和运行题库
题型:单项选择题

买卖合同可以分期付款,但买受人未支付到期价款的金额达到全部价款的( )的,出卖人可以解除合同。

A.10%
B.20%
C.30%
D.40%

题型:单项选择题
计算题:
①(a-3b2-4•(a-2b-33(结果只含正整数指数幂)
②先化简
2a+1
a2-1
÷
a2-a
a2-2a+1
-
1
a+1
(再取一个你认为合适的a的值代入求值)
③已知:
x+3
(x-2)2
=
A
x-2
+
B
(x-2)2
,求A、B的值.
④解方程
2
x+1
+
3
x-1
=
6
x2-1
题型:单项选择题

清末_______领导太平天国运动,沉重打击了清王朝统治。( )

A.张角

B.朱元璋

C.王小波

D.洪秀全

题型:单项选择题
完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文,掌握其大意,然后从下列各小题所给的四个选项(A、B、C和D)中,选出最佳 选项,并在答题卡上将该项涂黑。
In the doorway of my home, I looked closely at my 23-year-old son, Daniel. In a few hours he would be flying to France to ______a different life. It was a transitional(过渡的)time in Daniel's life. I wanted to______him some words of significance. But nothing came from my lips, and this was not the ______time I had let such moment pass.
When Daniel was five, I took him to the bus stop on his first day of kindergarten. He asked, "What is it going to be like, Dad? Can I do it?" Then he walked ______ the steps of the bus and disappeared ii\side. The bus drove away and I said nothing. A decade later, a similar . ______ played itself out. I drove him to college. As I started to leave, I tried to think of something to say to give him ______and confidence as he started this new stage of life. Again, words        me.
Now, as I stood before him, I thought of those  ______opportunities. How many times have I let such moments______ ? I don't ^nd a quiet moment to tell him what they have ______to me, or, in the years ahead what he might ______to face. Maybe, I thought it was not necessary to say anything.
What does it matter in the course of a lifetime if a father never tells a son what he really thinks of him?
______ as I stood before-Daniel, I knew that it did matter. My father and I loved each other. Yet, I always ______ never in all my life hearing him put his feelings into ______ . Now I could feel my palms sweat and my throat tightien. Why was it so 50 to tell a son something from the heart?
My mouth turned dry,and 1 knew I would he able to get______ only a few words clearly. "Daniel,‘' I said, "if I could have picked, I would have picked von." That's all I could say. He hugged me. For a moment, the
world ______ , and there were just Daniel and me. He was saying something, hut tears misted my eyes, and I couldn't understand what he was saying. All 1 was______of was the stubble (短须)on his chin as his ______pressed against mine. What I had said to Daniel was ______ . It was nothing. And yet, it.was everything.
小题1:
A.experienceB.exj>ressC.spendD.shape
小题2:
A.showB.sayC.leaveD.talk
小题3:
A.lastB.firstC.secondD.next
小题4:
A.awayB.intoC.downD.up
小题5:
A.signB.sceneC.sceneryD.sight
小题6:
A.interestB.instructionC.courageD.direction
小题7:
A.failedB.discouragedC.struckD.troubled
小题8:
A.missedB.embarrassedC.goneD.lost
小题9:
A.lastB.passC.stayD.remain
小题10:
A.countedB.meantC.valuedD.earned
小题11:
A.thinkB.wantC.expectD.wish
小题12:
A.ButB.AndC.InsteadD.So
小题13:
A.wonderedB.regrettedC.mindedD.tried
小题14:
A.argumentsB.attitudesC.wordsD.works
小题15:
A.importantB.essentialC.hardD.complex
小题16:
A.inB.downC.backD.out
小题17:
A.disappearedB.changedC.progressedD.advanced
小题18:
A.sensitiveB.convincedC.awareD.tired
小题19:
A.eyeB.faceC.noseD.forehead
小题20:
A.clumsyB.gentleC.ridiculousD.fluent
题型:单项选择题

油浸式接地变压器,绕组连同套管介质损耗因数,介质损耗因数未超标准限值,但有显著性差异,开展()类检修,进行绕组介质损耗因数测试,综合分析试验数据。停电试验前开展D类检修。

A.A

B.B

C.C

D.D

更多题库