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【简答题】
Harry , the first camel to arrive in Australia in 1840 , was an unlucky beast.He was imported from the Canary Islands by explorer John Horrocks.On an expedition( 探险 ) , Horrocks picked up his gun in order to shoot “ a beautiful bird to be added to the collection ”. Perhaps Harry was an ecologist—he lurched( 突然倾斜 ) , and the gun discharged , shooting Horrocks in the face. Horrocks not surprisingly died of his injuries , and his teammates ordered Harry to be shot.The first importation of a camel into Australia came to naught . In 1860,24 camels arrived in Australia to be part of an expedition by explorers Robert O ’ Hara Burke and William John Wills.It was an unlucky expedition.The pair made one mistake after another , and ended up eating most of their camels , before starving to death. Six years later , more than 100 camels and their Afghan minders , arrived in Australia.This time it succeeded and more camels followed. Sir Thomas Elder set up the first camel studs( 种畜场 ) in South Australia , while others were set up in Western Australia.This time the camels bred( 繁殖 ) like wildfire.They were used for working , rather than exploring expeditions. The imported Afghan cameleers were just as hardy and vital , leading camel trains across the cruel interior( 内陆 ) of Australia , where few dared to go.The camels carried heavy packs of wool and supplies and opened up the desert areas as none had managed to do before.The train that does this crossing today is called the Ghan , in their honor. Motorization put these camel trains out of business , and many camels were turned loose.The camels loved Australia , and multiplied in amazing numbers.What is to be done with them? Not surprisingly they have become quite a tourist attraction and you can take a camel ride in the desert as the Afghan cameleers once did.But the fact is that camels create quite a problem in areas where they have taken over , as they damage local vegetation , muscle out native animals competing for food , and create chaos when they wander into settled areas.
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参考答案:
举一反三
【单选题】上实验课应( )
A.
穿实验服,按实验规程操作
B.
大声喧哗
C.
随意使用实验器材
D.
随意触摸、嗅药品
【判断题】上实验课前,助教应预做实验,做好实验记录。
A.
正确
B.
错误
【判断题】第一次上实验课时,实验教师应该提醒学生了解实验室附近的安全出口位置。
A.
正确
B.
错误
【判断题】机身垂直站位的基准参考面为地平面。
A.
正确
B.
错误
【单选题】火灾报警控制器监控的现场设备发生故障并发出声、光报警所处的状态是______。
A.
正常监视状态
B.
现场设备故障报警状态
C.
屏蔽状态
D.
备电故障报警状态
【单选题】结核菌素试验形成的皮丘直径应该为
A.
5mm
B.
6~10mm
C.
11~15mm
D.
16~20mm
E.
21~25mm
【判断题】现场设备故障报警状态:火灾报警控制器监控的现场设备发生故障并发出声、光报警所处的工作状态。
A.
正确
B.
错误
【单选题】上实验课应
A.
穿实验服
B.
大声喧哗
C.
随意触摸药品
D.
随意使用实验器材
【单选题】设高温热源的热力学温度是低温热源热力学温度的n倍,则理想气体在一次卡诺循环中,传给低温热源的热量是从高温热源吸取的热量的( )。
A.
n倍
B.
n-1倍
C.
1/n
D.
(n+1)/n倍
【单选题】上实验课应( )
A.
随意触碰实验器材
B.
私自携带药品离场
C.
穿白大衣(实验服)
D.
迟到、早退
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