What is a small, sterile glass or plastic container that usually contains a single dose of a solution?

Which of the following types of fire doors is usually held open by a fusible link and cannot be used to protect openings in walls that are required parts of a means of egress?

A. Swinging B. Rolling steel C. Horizontal-sliding D. Horizontal-folding

The surgeon may place more than one trocar during puncture endoscopy

Indicate whether the statement is true or false.