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单项选择题

FP0R-A21模块输入特性设定为0-5V时，如果输入电压为4V时，则PLC内接收到的数据是什么？

A．K1600
B．K2400
C．K3200
D．K4000
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单项选择题
急性心肌梗死的典型表现？（  ）
A．胸痛
B．返酸
C．头晕头痛
D．血压下降
E．意识不清
单项选择题
Part Three
Directions: In this section, you will hear four short conversations and two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
 
Long conversation 2
20. What inference can you make about Professor Simpson?
A、He is eager to give students information about such a project.
B、He thinks all criminals should be punished severely.
C、He refuses to label all criminals as psychologically abnormal.
D、He has an opposing view to students.
判断题
The classical Marshmallow Experiment is a series of classic psychological experiments on self-monitoring. ()
A、正确
B、错误
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