En la actualidad no se suelen utilizar cordones tiracables de______.
a. nylon
b. cáñamo
c. polipropileno
d. poliéster multiplex
b. cáñamo
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A common use of shading is to show ____ of a surface.
A. curvature B. the axes C. actual dimensions D. bounding boxes
You purchase a farm that consists of 2,146 acres, of which 68 percent is suitable for cropland. How many acres are not suitable for crops?
What will be an ideal response?
One hormone that is released from the adrenal medulla is
A) insulin. B) aldosterone. C) cortisol. D) androgen. E) epinephrine.
Answer the following statement(s) true (T) or false (F)
1.PV systems are simply energy converters that convert one form of energy (sunlight) into another form of energy (electricity). 2.Stand-alone PV systems typically use array voltages of 12, 24, 48, or 60 volts. 3.Batteries used in PV systems have wattage ratings that are used to determine how many batteries are needed in a PV system installation. 4.The most common PV module design is a flat-plate module. 5.A circuit breaker that is marked “line” and “load” cannot be back-fed.