皮皮学，免费搜题
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【多选题】
变鼻炎健康教育正确的是A.
花粉传播季节经常到户外以脱敏
B.
经常洗晒衣被
C.
断养宠物
D.
室内装修环使用环保产品
E.
搞卫生戴口罩
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皮皮学刷刷变学霸
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
【单选题】The people of El Hierro ( ).
A.
need to buy all of their oil
B.
need to buy 30% of their oil
C.
don't need to buy any oil
【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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