题目内容

S7-200系列PLC的编程软件名称是()

A. STEP9-Micro/win
B. STEP8-Micro/win
C. STEP7-Micro/win
D. TIA Portal

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下列_____语句可用来创建表()

A. CREATE TABLE
B. MAKE TABLE
CONSTRUCT TABLE
D. NEW TABLE

An increase in the price of a good will()

A. increase demand
B. decrease demand
C. increase quantity demanded
D. decrease quantity demanded

A monopoly is a market with one()

A. seller, and that seller is a price taker
B. seller, and that seller sets the price
C. buyer, and that buyer is a price taker
D. buyer, and that buyer sets the price

Which of the following would most likely serve as an example of a monopoly()

A. a restaurant in a large city
B. a dry cleaners in a large city
C. a local gas station
D. a local electrical company

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