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【单选题】
电流继电器使用吸引线圈直接或通过电压互感器( )在被控电路中。A.
并联
B.
串联
C.
串联或并联
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举一反三
【单选题】Internet marketing, also _______ online marketing or e-marketing, is referred to as the marketing of products or services over the Internet.
A.
known as
B.
is known as
【简答题】Internet marketing
【简答题】3) What is d igital marketing often referred to as “ online marketing ” , “ internet marketing ” or “ web marketing ” .
【单选题】In marketing, the use of the Internet can help businesses to ______.
A.
identify their competitors
B.
improve their products
C.
provide comprehensive service
D.
change their mindset
【单选题】Which major promotion category uses catalogs, telephone marketing, kiosks, and the Internet?
A.
sales promotion
B.
direct marketing
C.
horizontal diversification
D.
public relations
E.
advertising
【多选题】在以下四个选项中关于乳化液泵安全阀说法正确的是()
A.
安全阀是泵的过载保护元件
B.
安全阀的调定工作压力为泵站工作压力的110%-115%
C.
安全阀主要由两套并联的单向阀、主阀和一个先导阀组成
D.
调整弹簧的作用力即能改变安全阀的开启压力
【多选题】Internet marketing presents marketing practitioners with special challenges including _______
A.
Customer empowermen t
B.
Real-time interactivitie s
C.
High level of market transparency
D.
Difficulty maintaining competitive advantag e
【判断题】In global Internet marketing, marketers can take other countries and their populations for granted without restraint.()
A.
正确
B.
错误
【判断题】在切削加工中,进给运动只能有一个。( ) 2、 退火和正火一般作为预备热处理,通常安排在毛坯制造之后,粗加工之前进行。( ) 3、 工序集中优于工序分散。( ) 4、过定位是允许的,( )欠定位是允许的。( )
A.
正确
B.
错误
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