完全强直收缩时,其机械收缩波相互融合,动作电位也完全融合。
A. 对
B. 错
Hidradenitis is inflammation of a __________________.
A. sweat gland
B. salivary gland
C. sebaceous gland
D. ceruminous gland
E. meibomian gland
Leukoplakia is __________________.
A. baldness
B. ulceration
C. formation of white patches in the mouth
D. formation of yellow patches on the skin
E. formation of scales on the skin
Hydrocortisone is a(n) __________________.
A. vitamin
B. steroid
C. analgesic
D. lubricant
E. diuretic
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