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【单选题】
设 N , Z , R 分别表示自然数集、整数集和实数集,下列关系中能构成函数的是A.
p.p1%20%7Bmargin%3A%200.0px%200.0px%200.0px%200.0px%3B%20text-align%3A%20justify%3B%20font%3A%2010.5px%20%26%2339%3BTimes%20New%20Roman%26%2339%3B%3B%20color%3A%20%23ff0000%7D { >|( x, y ∈ N )∧( x + y <10)}< /div>
B.
{ >|( x, y∈ R )∧ ( y = x 2 )}
C.
{ >|( x, y ∈ R )∧ ( y 2 = x )}
D.
{ >|( x, y ∈ Z ) ∧ ( x ≡ y (mod 3)}
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举一反三
【单选题】The process of sourcing goods and materials, negotiating with suppliers, paying for goods, and making delivery arrangements over the Internet is called:
A.
e-procurement
B.
procurement
C.
SCM
D.
sourcing
【单选题】执行 Quartus II 的 ( ) 命令,可以对设计的电路进行仿真。
A.
Creat Default Symbol
B.
Compiler
C.
Simulator
D.
Programmer
【单选题】可转为慢性肝炎并发展为肝硬化和肝癌的病毒性肝炎类型是
A.
甲型、乙型、丙型
B.
乙型、丙型、丁型
C.
丙型、丁型、戊型
D.
甲型、丙型、戊型
E.
乙型、丁型、戊型
【单选题】执行Quartus II的 命令,可以对设计电路进行功能仿真或者时序仿真。
A.
Start Software Build
B.
Start Simulator
C.
Statr Compilation
D.
Compilation Report
【简答题】A representative who performs sourcing activities on behalf of the employer is called a sourcing _______.
【单选题】The process of sourcing goods and materials, negotiating with suppliers, paying for goods, and making delivery arrangements is called
A.
e-procurement.
B.
SCM.
C.
procurement.
D.
sourcing.
【单选题】Sourcing involves
A.
deciding the tasks that will be outsourced and those that will be performed within the firm.
B.
deciding whether to source from a single supplier or a portfolio of suppliers.
C.
identifying the set of criterion that will be used to select suppliers and measure their performance.
D.
selecting suppliers and negotiating contracts with them.
E.
all of the above
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