用一个字节表示无符号整数,能表示的最大整数是()。A.255 B.无穷大 C.256

题型:单项选择题

问题:

用一个字节表示无符号整数,能表示的最大整数是()。

A.255

B.无穷大

C.256

D.128

考点:专升本考试计算机文化基础专升本(计算机)25
题型:单项选择题

蛋白聚丙烯酰胺凝胶电泳所使用的电泳缓冲液为()

A.TAE

B.TBE

C.TPE

D.Tris-甘氨酸缓冲洗液

E.碱性缓冲液

题型:单项选择题
Bill White’s father is a lawyer. In his   56 time, he likes to get out in the country and take some 57 of animals.
For a long time, Bill had wanted to go with his father on one of his 58 . But his father didn’t take Bill along with him 59  he was fifteen.
He and Bill drove to the farm which 60 to his uncle in the afternoon. They        61 the night there, so that they could 62 out early the next morning. Uncle Steve and his son Larry, who was sixteen, were going to go out with them.
It was still dark when Bill heard the alarm 63 the next morning. He wondered why it was running so early. He couldn’t remember 64  he was. He turned over   __65__and looked at the clock. It was 5 o’clock. Then he 66  that he was at the     67 and that he was going out to take pictures with his father. He jumped out of bed and got 68 quickly.
He ran downstairs. The others were already in the   69   ,where Uncle Steve was cooking bacon and eggs. There was a pot of coffee on the stove. It   70  good.
They ate breakfast quickly. They didn’t talk 71  , because they didn’t want to   __72__ up the other people in the house. They filled a thermos bottle(热水瓶)        73 hot coffee and took some sandwiches 74 Aunt Grace, Uncle Steve’s wife, had made for them. They gathered their camera   75  and started out.
小题1:
A.busyB.spareC.enoughD.limited
小题2:
A.foodsB.drawingsC.paintingsD.pictures
小题3:
A.tripsB.busesC.animalsD.mountains
小题4:
A.afterB.whenC.untilD.unless
小题5:
A.ledB.stuckC.gotD.belonged
小题6:
A.costB.spentC.sleptD.took
小题7:
A.startB.beginC.walkD.step
小题8:
A.telephoneB.machineC.computerD.clock
小题9:
A.whereB.howC.whoD.what
小题10:
A.quicklyB.sleepilyC.quietlyD.suddenly
小题11:
A.imaginedB.pronouncedC.forgotD.remembered
小题12:
A.mountainB.townC.farmD.station
小题13:
A.dressedB.orderedC.eatenD.prepared
小题14:
A.bathroomB.kitchen C.studyD.bedroom
小题15:
A.seemedB.feltC.tastedD.smelled
小题16:
A.manyB.soundly C.muchD.highly
小题17:
A.wakeB.go C.putD.come
小题18:
A.ofB.with C.inD.by
小题19:
A.thatB.what C.afterD.before
小题20:
A.coverB.supplyC.operatorD.equipment(设备)
题型:单项选择题

引入防火墙的好处有( )。 Ⅰ.保护脆弱的服务 Ⅱ.集中的安全管理 Ⅲ. 策略执行 Ⅳ.增强的保密 Ⅴ.控制对系统的访问 Ⅵ.记录统计网络利用数据和非法使用数据

A.Ⅰ、Ⅱ、Ⅲ、Ⅵ

B.Ⅱ、Ⅲ、Ⅳ、Ⅴ

C.Ⅰ、Ⅲ、Ⅴ、Ⅵ

D.以上全部

题型:单项选择题

某市某区人民政府决定将区建材工业局管理的国有小砖厂出售,小砖厂的承包人以侵犯其经营自主权为由提出行政复议申请,本案的行政复议机关应当是()

A.市国有资产管理局

B.市经济贸易局

C.市人民政府

D.区人民政府

题型:单项选择题

肝内窦前型门静脉高压症的病因

A.肝外门静脉血栓形成
B.肝炎后肝硬化
C.血吸虫病
D.布加综合征
E.肝脓肿

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