To refer to a single element of a hash, you use the $ character before the variable name, followed by the key associated with the value in ____.
A. parentheses
B. curly brackets
C. square brackets
D. angle brackets
Answer: B
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Dave Miller tells new employees that so long as they do what they are told, he will pretty
much let them alone. But, if they get out of line, he will not hesitate for one minute to impose the contractual disciplinary procedure. What kind of reinforcement does Dave's approach represent?
a. Positive reinforcement b. Avoidance c. Extinction d. Punishment e. Distortion
Electric heating units provide almost instant heat. Therefore, anticipators are not needed in electric heat thermostats.
Answer the following statement true (T) or false (F)
The term that describes the maximum number of standard logic inputs that an IC output can drive reliably is:
A) power requirements. B) fan-out C) noise immunity. D) speed-power product.
?It is faster to make the root weld using the downhill technique if ______________________.
A. ?you can see all of the joint so you can follow it B. ?the root opening is narrow so the weld has something to support it C. ?The voltage is lowered by 5 to 10 volts D. ?the root opening is uniform and not too wide or narrow