Look and write. (看图写句子)

例: I get up at 7:00 in the morning.

1. ______________________________________

2. ______________________________________

3. ______________________________________

局麻药的作用机制是（）

A.阻止K⁺内流

B.阻止Na⁺内流

C.阻止Ca²⁺内流

D.阻止Cl^—内流

E.降低静息膜电位