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【单选题】
世界上第一台激光器是A.
红宝石激光器
B.
氦氖激光器
C.
半导体激光器
D.
蓝宝石激光器
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皮皮学刷刷变学霸
举一反三
【简答题】当网络的数据流量或交通流量超过网络的额定容量时,将引起网络的吞吐能力急剧下降,这时必须进行网络( )。
【单选题】What is the main impression of the scenes on the Ramblas?
A.
It is bizarre and outlandish.
B.
It is of average quality.
C.
It is conventional and quiet.
D.
It is of professional standard.
【判断题】The bizarre high temperature typically visited the Arctic once in a decade. (5.0分)A. √ B. ╳
A.
正确
B.
错误
【单选题】This kind of flu virus will be killed and ( ) harmless after it is exposed to high temperatures.这种流感病毒在经过高温之后就会被杀死从而变的无害。
A.
render
B.
rendom
C.
rendered
D.
rendering
【单选题】It’s high time we _____ cutting down the rainforests. (TEM4-2006-54)
A.
stopped
B.
had to stop
C.
shall stop
D.
stop
【单选题】It’s high time we _____________ cutting down the rainforests. (TEM4, 2006)
A.
stop
B.
shall stop
C.
stopped
D.
had to stop
【单选题】His expenditure on holidays and luxuries is rather high in to his income. ( TEM4- 2001 )
A.
comparison
B.
proportion
C.
association
D.
calculation
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