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【单选题】
S7-300 PLC中组织块很多,OB1是其中一个重要的成员,以下对OB1的作用描述正确的是 ()。
A.
循环组织快
B.
定时中断组织块
C.
通讯组织块
D.
初始化组
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参考答案:
举一反三
【单选题】When he was in America, he went on a journey ______ to see Yellow Stone Park.
A.
in fact
B.
by chance
C.
in turn
D.
on purpose
【单选题】听力原文:W: Did you go to the Yellow Stone Park when you had your vacation last year? M: First I visited my aunt in New York, then I went to the Great Lakes and saw the Niagara Falls. I plan to visit the ...
A.
Visit his aunt.
B.
Go to the Great lakes.
C.
Visit the Yellow Stone Park.
D.
See the Niagara Falls.
【单选题】2019年12月31日,甲企业“预收账款”总账科目贷方余额为10万元,其明细科目余额如下:“预收账款—乙企业”科目贷方余额为20万元,“预收账款—丙企业”科目借方余额为10万元。“应收账款”总账科目借方余额为4万元,其明细科目余额如下:“应收账款—丁企业”科目贷方余额为12万元,“应收账款—戊企业”科目借方余额为16万元。不考虑其他因素,甲企业年末资产负债表中“预收款项”项目的期末余额是?
A.
15万元
B.
12万元
C.
32万元
D.
25万元
【多选题】对于面向对象的开发来讲也分为三个过程是()
A.
OOA(面向对象分析)
B.
OOD(面向对象设计)
C.
OOP(面向对象编程)
D.
00C (面向对象完成)
【单选题】Yellow Stone National Park, ________in 1872, _________over three million visitors every year, is America’s first and foremost National Park.
A.
establishing, attracted
B.
having established, attracted
C.
established, attracting
D.
being established, attracting
【单选题】Yellow stone National Park is (one of) the (older) parks in the U. S. It (was established) (Congress) in 1872.
A.
one of
B.
older
C.
was established
D.
Congress
【多选题】以下哪些因素会影响退休后养老资金总需求( )。
A.
退休养老后的生活质量要求
B.
退休后通货膨胀率
C.
预期寿命
D.
退休前工资收入
【多选题】公司创业过程中创造环境是指:( )。
A.
取得管理层支持
B.
取得其他部门支持
C.
获得团队自主权
D.
召开新闻发布会
【单选题】What does the speaker say about Yellow Stone national park?
A.
It was the first region explored by pioneers.
B.
It was the first national park.
C.
It is not accessible to everyone.
D.
It is not managed by the National Park Service.
【判断题】从中性点引出的导线叫中性线,当中性线直接接地时称为零线,又叫地线。
A.
正确
B.
错误
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