Refrigeration systems are designed to operate year round. For this reason they are equipped with ____.
A. some type of head pressure control
B. a low ambient control
C. oversized evaporator coils
D. both a and b
Answer: D
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¿Cuál de los siguientes no es considerado uno de los tipos básicos de suelo?
a. Arena b. Arcilla c. Roca d. Lodo
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Scientists have been able to ____ plants using the technique called tissue culture
A) feed B) water C) clone D) revive
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European explorers introduced the practice of irrigation to Central and South American civilizations, including the Incas, Mayans, and Aztecs
Indicate whether the statement is true or false
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The term ____________________ means the ability to be hammered or pressed into shape without breaking.
Fill in the blank(s) with the appropriate word(s).
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