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【单选题】
使用继承的优点是()A.
基类的大部分功能可以通过继承关系自动进入派生类
B.
继承将基类的实现细节暴露给派生类
C.
一旦基类实现出现bug，就会通过继承的传播影响到派生类的实现
D.
可在运行期决定是否选择继承代码，有足够的灵活性
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知识点：
皮皮学刷刷变学霸
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【简答题】How
do supermarkets encourage you to come back soon and may be spend more? They ________1________________, which __________2_________________ very attractive special offers.
【简答题】Howdo supermarkets often make you feel good to be there? Theyput beautiful flowers and plants in the entrance __________
【多选题】How do supermarkets encourages shoppers to come back soon? They( ) ,with which the shoppers can( )
A.
credit card
B.
get some money back or things for free.
C.
pass many things that are nice but that they don't really need.
D.
feel the weight of the things you buy
E.
to invite shoppers to come into the store
F.
add points to loyalty cards
G.
so big and deep.
【单选题】在规定条件下进行锅炉升压试验时，当安全阀开启后，水管锅炉______，火管锅炉______，锅炉压力升高不得超过工作压力的10%。
A.
10分钟/15分钟
B.
7分钟/15分钟
C.
10分钟/20分钟
D.
7分钟/20分钟
【简答题】How do supermarkets often make you feel good to be there? They put beautiful flowers and plants in the entrance ______________________. 2.Give three examples of how supermarkets persuade shoppers to b...
【简答题】How do supermarkets often make you feel good to be there? They put beautiful flowers and plants in the entrance ______________________. 2. Give three examples of how supermarkets persuade shoppers to ...
【单选题】对于滴定分析法，下列叙述错误的是（ ）
A.
以化学反应为基础的分析方法
B.
反应速率要快，最好在滴定剂加入后即可完成
C.
所有化学反应都可以用于滴定分析
D.
要有合适的方法指示滴定终点
【简答题】How do supermarkets persuade shoppers to buy more goods than they planned? ______
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