单选题An amusement park ride has an elevator that brings riders to the top of a tower. Riders step off the elevator onto a straight slide, which leads from the top of the tower to level ground. The base of the slide is 400 feet from the base of the tower and

题目
单选题
An amusement park ride has an elevator that brings riders to the top of a tower. Riders step off the elevator onto a straight slide, which leads from the top of the tower to level ground. The base of the slide is 400 feet from the base of the tower and the length of the slide is 500 feet. If the elevator rises at a rate of 10 feet per second, how many seconds does the elevator take to rise from the ground to the top of the slide?
A

30

B

40

C

50

D

150

E

300

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相似问题和答案

第1题:

Which of the following statements is true?

A. Telephone was invented by a French engineer.

B. Roman soldiers sent the important message by spelling out the words.

C. African soldiers shouted from tower to tower to pass message.

D. Only by using telephone could people send speech sounds quickly.


正确答案:D

52.答案为D  通过电话人们能快速地传递声音信息。其他三句与原文不符。

第2题:

Within a resource-plan definition, what differentiates a top-level plan from a subplan?()

A. A subplan has the PLAN_SUB parameter value set to SUB

B. A top-level plan has the GROUP_OR_PLAN parameter set to the name of the subplan in the resource-plan definition

C. There is no difference in the resource-plan definition

D. A subplan always has the CPU_MTH parameter value set to RATIO

E. The string TOP_LEVEL is appended to the name of top-level resource plans


参考答案:C

第3题:

I’d like to take my first picture _____ stands the high tower.

A.where

B.which

C.that

D.in which


正确答案:A

第4题:

Which of the following has a MAXIMUM distance of 300 meters (984 feet)?()

  • A、1000Base-T
  • B、10GBase-SW
  • C、100Base-FX
  • D、100Base-TX

正确答案:B

第5题:

An administrator has received an update CD with the latest technology level for AIX 5.3. The current operating system level of the server is at base AIX 5.3. What action needs to be taken to apply the new technology level to the server?()

  • A、Run smit update_all
  • B、Run smit install_all
  • C、Boot from the installation media
  • D、Run the update_all command from the mounted CD

正确答案:A

第6题:

From their _____on the top of the TV Tower, visitors can have a better view of the city.

A.stageB.position C.conditionD.situation


正确答案:A

第7题:

Which of the following has a MAXIMUM distance of 300 meters (984 feet)?()

A.1000Base-T

B.10GBase-SW

C.100Base-FX

D.100Base-TX


参考答案:B

第8题:

_____ from the top of the tower ,the south foot of the mountain is a sea of trees . ( )

A.Seen

B.Seeing

C.Have seen

D. To see


正确答案:A

第9题:

查询金额最大的那10%订单的信息。正确的SQL语句是()。

  • A、SELECT * TOP 10 PERCENT FROM 订单
  • B、SELECT TOP 10% * FROM 订单 ORDER BY 金额
  • C、SELEC T* TOP 10 PERCENT FROM 订单 ORDER BY 金额
  • D、SELECT TOP 10 PERCENT * FROM 订单 ORDER BY 金额 DESC

正确答案:D

第10题:

Which of the following cable standards has a maximum effective range of 25 meters (82 feet)?()

  • A、1000Base-CX
  • B、1000Base-T
  • C、1000Base-LX
  • D、1000Base-SX

正确答案:A

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