开工前水冲洗、水联运的目的是什么?
参考答案:
目的是①进一步将管线内的脏杂物冲洗干净②试验各机泵、管线、仪表运转情况是否良好,有无泄露,把问题暴露在开工以前。
根据上下文,补全对话。
Tom: 1
Lily: Yes, I'm very hungry.
Tom: Do you want some toast and jam?
Lily: 2 I don't like toast and jam.
Tom: Do you want some cereal?
Lily: I don't know. 3
Tom: In Canada, people eat cereal for breakfast. 4
Lily: It's good! OK. 5
TOm: What do you want to drink?
Lily: 6
A. No, thanks.
B. I want some cereal to eat.
C. Are you hungry?
D. What is cereal?
E. It's good!
F. I want some juice to drink.
G. I want some porridge to eat.
H. Are you thirsty?
「强调两种以上产品的组合销售」是下列哪一种定价策略?()
A.搭售(bundling)策略
B.差别定价策略
C.流行水平定价策略
D.购买者需求定价策略