【单选题】A 35-year-old woman having an anxiety attack collapses. The emergency medical technician(EMT)who arrives on the scene notes that she is hyperventilating and suspects that she is suffering from tetany,...
A.
Decreased release of inhibitory neurotransmitter from nerve terminals
B.
Depolarization of the nerve and muscle membranes
C.
Spontaneous release of calcium from the sarcoplasmic reticulum(SR)
D.
Activation of sodium channels at more negative membrane potentials
E.
Increased magnitude of the action potentials invading nerve terminals
【简答题】A) The woman should be alert to heavy traffic. B) Many people go to the countryside at the weekend. C) The woman should guard against robbers on the way. D) Give him a call when the woman arrives home...
【简答题】听下面一段对话,回答第1-3题。 1. Where is the woman going? [ ] A. To Boston B. To San Francisco C. To New York 2. What does the woman think of the first train? [ ] A. It is going to the wrong place. B. The...