You are called to a 25-year-old man complaining of RLQ pain. His other symptoms are nausea and vomiting, fever, and decreasing pain in the umbilicus area. You should suspect:

Fertilization of the egg may take place during the _________ phase of the menstrual cycle

Fill in the blank(s) with correct word

Which of the following statements regarding smoke-control devices is MOST accurate?

A. They are uncommon in stadiums. B. They are useless in high-rise structures. C. They are occasionally located in return air ducts. D. They are often active, rather than passive, systems.