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【单选题】
PLC 梯形图编程时,右端输出继电器的线圈能并联 ( ) 个。
A.
B.
不限
C.
D.
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举一反三
【单选题】Jack London was at his height of his powers when he wrote ___, which is deeply influenced by Darwinism.
A.
The Sea Wolf
B.
Martin Eden
C.
The Call of the Wild
D.
White Fang
【单选题】Jack London was at his height of his powers when he wrote______, which is deeply influenced by Darwinism.
A.
The Sea Wolf
B.
To Build a Fire
C.
The Call of the Wild
D.
Martin Eton
【单选题】______ entering his flat, Jack was shocked to find his new computer missing.
A.
In
B.
On
C.
By
D.
At
【单选题】下列属于文件输入输出类的是()
A.
FileInputStream 和 FileoutputStream
B.
BufferedInputStream 和 BufferOutputStream
C.
PipeInputStream 和 PipeOutputStream
D.
以上都是
【判断题】跨境电商产品的价格至少包括,进货成本、国内物流费用、包邮的国际物流运费、跨境电商平台成本、推广费用,售后维护成本等等其他费用、利润额等等
A.
正确
B.
错误
【单选题】以下程序的输出结果是 using System; namespace aaa { class Example1 { static void Main() { int i; int [] a=new int[10]; for(i=9;i>=0;i--) a[i]=10-i; Console.WriteLine("{0},{1},{2}",a[2],a[5],a[8]); } } }
A.
2,5,8
B.
7,4,1
C.
8,5,2
D.
3,6,9
【判断题】产品的价格至少包括,进货成本、国内物流费用、包邮的国际物流运费、跨境电商平台成本、推广费用,售后维护成本等等其他费用、利润额
A.
正确
B.
错误
【单选题】Jack was ____by his mother's rude behaviour.
A.
irritated
B.
unhappy
C.
unkind
D.
surprised
【单选题】以下程序的输出结果是#include <iostream>using namespace stdint main(){ cout.fill('*') cout.width(5); cous<<hex<<100<<end1 return 0}
A.
**100
B.
***64
C.
100**
D.
64***
【多选题】跨境电商的成本重要包括()。
A.
机会成本
B.
物流成本
C.
交流成本
D.
价格成本
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