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【多选题】
PLC的程序设计语言有哪些?
A.
LAD梯形图
B.
STL语句表
C.
SFC顺序功能流程图
D.
FBD功能块图
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参考答案:
举一反三
【简答题】It has been proved that the upper atmosphere above certain distance continually grew thinner and colder ______.
【单选题】When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard,which of the following is the best source for determining what is required? ()
A.
The supervisor in charge of the dock to which the barge is tied up
B.
Part 38 of the Rules and Regulations for Tank Vessels
C.
The Certificate of Inspection of the barge
D.
The local fire marshal
【单选题】It has been proved ( )
A.
what the brains of men and women are not entirely the same.
B.
what that the brains of men and women are not entirely the same.
C.
that the brains of men and women are not entirely the same.
D.
the brains of men and women are not entirely the same.
【单选题】The sum of all of the debit items in the balance of payments ( ).
A.
Equals the overall balance
B.
Equals the sum of all credit items
C.
Equals “compensating” transactions
D.
Equals the sum of credit items minus errors and omissions
【单选题】在滤线栅使用原则中,肢体厚度应超过
A.
5cm
B.
10cm
C.
15cm
D.
20cm
E.
25cm
【单选题】The sum of all of the debit items in the balance of payments ( ) :
A.
Equals the overall balance.
B.
Equals the sum of all credit items.
C.
Equals the compensating transactions .
D.
Equals the sum of credit items minus errors and omissions.
【简答题】All individuals are required to ________ to the laws made by their governments. A) obey B) conform C) concede D) observe
【单选题】对混凝土流动性大小起决定性作用的是。
A.
砂率
B.
胶凝材料用量
C.
用水量
D.
水胶比
【单选题】对混凝土流动性大小起决定性作用的是____________
A.
砂率
B.
水泥用量
C.
用水量
D.
水灰比
【简答题】基准根据作用不同,一般可以分为____和____两大类。
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