About the description of congenital factors, which of the following is incorrect（）
A. Mostly heritable
B. Refers to the harmful factors that can impair the growth and development of fetuses
C. Maternal infections caused by viruses in the early stage of pregnancy
D. Maternal use of teratogenic drugs in the early stage of pregnancy
E. Some congenital factors are also genetic factors
查看答案
The mechanism of sodium and water retention during edema is（）
A. Increased capillary hydrostatic pressure
B. Plasma colloid osmotic pressure drops
C. Blockage of lymphatic drainage
D. Increased capillary wall permeability
E. glomerulotubular imbalance
The strongest buffer system which buffers volatile acids in blood is（）
A. HCO3-/H2CO3
B. Hb- /HHb & HbO2-/HHbO2
C. Pr-/HPr
D. Organic phosphate
E. HPO42-/H2PO4-
The condition that does not lead to hypokalemia is（）
A. No food for a long time
B. Frequent vomiting
C. Increased aldosterone secretion
D. Acute acidosis
E. Large dose of insulin
The mechanism of depolarization block in patients with hyperkalemia is（）
A. The absolute value of resting membrane potential approaches to the threshold potential
B. Increased distance between resting membrane potential and threshold potential
C. Increased absolute value of resting membrane potential
D. Increased threshold potential
E. Decreased threshold potential
微信支付 
支付宝支付