Question:
Choose your answer: Is "Avoiding these difficulties, commercial antennas are generally designed with fixed matching elements or feeding strategies to get an approximate match to standard coax, such as 50 or 75 Ohms." a good answer to the question "A general matching network needs a minimum of how many adjustments to correct all components of impedance?"
Answer:
no

Question:
Choose your answer: Is "Darwin argued that emotions actually served a purpose for humans, in communication and also in aiding their survival." a good answer to the question "In what century did Darwin write?"
Answer:
no

Question:
Choose your answer: Is "Before the dissolution of the Soviet Union, the overwhelming majority of Russophones in Brighton Beach, Brooklyn in New York City were Russian-speaking Jews." a good answer to the question "When did Russian explorers first reach North America?"
Answer:
no