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【多选题】
以下哪些属于卖方企业-买方个人的B2C平台。A.
京东
B.
人才招聘网
C.
天猫
D.
唯品会
E.
当当
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反馈参考答案：
举一反三
【单选题】The conditional operator ( ?: ) ________.
A.
is the only ternary operator in C
B.
is a unary operator
C.
associates from left to right
D.
accepts two operands
【单选题】The following description of operator priority is correct
A.
relational operator < arithmetic operator < assignment operator < logic operator
B.
logic operator < relational operator < arithmetic operator < assignment operator
C.
assignment operator < logic operator < relational operator < arithmetic operator
D.
arithmetic operator < relational operator < assignment operator < logic operator
【简答题】操纵基因(operator，operator gene，O)
【单选题】在某类的公共部分有声明string operator++()；和string operator++(int)；则说明
A.
string operator++()；是前置自增运算符声明
B.
string operator++()；是后置自增运算符声明
C.
string operator++(int)； 是前置自增运算符声明
D.
两条语句无区别
【单选题】The operator of electrical motors should keep a constant check on the loads they carry because _____.
A.
low loads necessitate frequent insulation cleaning
B.
exceeding nameplate values shortens useful life
C.
energy is wasted if full loading is not utilized
D.
power factor correction methods are load dependent
【单选题】The OR ( || ) operator _________.
A.
has higher precedence than the AND ( && ) operator
B.
stops evaluation upon finding one condition to be true
C.
associates from right to left
D.
is a ternary operator
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