The most important customer a technician has is:()A. the customer standing right in front of them.B. the customer who owes the company the most money.C. the customer calling on the phone.D. the customer they have an appointment with in an hour.

题目
The most important customer a technician has is:()

A. the customer standing right in front of them.

B. the customer who owes the company the most money.

C. the customer calling on the phone.

D. the customer they have an appointment with in an hour.


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    Whichfouraretrue?()

    A.Has-arelationshipsshouldneverbeencapsulated.

    B.Has-arelationshipsshouldbeimplementedusinginheritance.

    C.Has-arelationshipscanbeimplementedusinginstancevariables.

    D.Is-arelationshipscanbeimplementedusingtheextendskeyword.

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    参考答案:C, D, E, F

  • 第2题:

    下列关于CSS重要性的说法中正确的是()

    A.!important要写在分号“;”的前面

    B.!important要写在相关属性值的前面

    C.!important权值为1000

    D.!important只能应用与字体样式设置


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  • 第3题:

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    A..green{ color:green!important; }

    B..green{ !important color:green; }

    C..green!important{ color:green!important; }

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  • 第4题:

    当需要删除某个序列seq_customer_id,可以使用如下()方式。

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    C.DROP SEQUENCE SEQ_CUSTOMER_ID

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    参考答案:C

  • 第5题:

    下面关于CSS样式优先级,正确的是

    A.!important > id > class > tag

    B.id> !important > class > tag

    C.!important > tag > class > id

    D.tag> id > class > !important


    important > id > class > tag

  • 第6题:

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