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【单选题】
关于制药环境的空气净化内容叙述正确的是( )。A.
用于制药环境空气净化的乱流，洁净度较单向流洁净室高
B.
非层流型洁净空调系统净化空气的原理是用净化的空气稀释室内空气
C.
水平单向流的洁净室，室内不同的地方洁净度等级一致
D.
乱流净化的过程可以使粒子始终处于浮动状态，无回流或涡流区
E.
非单向流洁净室内的气流方向呈错乱状态，洁净度等级达到A级
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举一反三
【单选题】________ is installed into special, read-only memory of devices like printers and print servers or devices used for various types of communication.
A.
Vertical-market software
B.
Application software
C.
Firmware
D.
Spyware
E.
AIX kernel
【单选题】The figure of speech applied in the sentence “Rhetorical devices are like the color to a painting.” is _______.
A.
metaphor
B.
hyperbole
C.
simile
D.
synecdoche
【单选题】What is said about Apple Inc. with its tablet devices like iPad?
A.
It doubled its sale of e-readers during the Christmas season.
B.
It controls 73 percent of the tablet device market.
C.
It charges customers less in credit card transaction fees.
D.
It has long been selling its traditional personal computers
【判断题】Cyberbullying takes place over digital devices like smart phones and computers.
A.
正确
B.
错误
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