In the early twentieth century, epidemic ________ struck in New York for the first time.

Which part of the syringe can be described as a piston-type rod?

A) Barrel B) Plunger C) Flange D) Syringe tip

If the distance between the hyoid bone and the thyroid notch is at least ___ cm wide, the difficulty of intubation should be low.

A) 1 B) 2 C) 3 D) 4