糖类的消化产物是怎样被吸收的?
参考答案:
食物中的淀粉和糖原经消化成单糖(葡萄糖)、半乳糖和果糖后在肠管内吸收,然后主要通过毛细血管进入血液,很少一部分进入淋巴。
Elizabeth believed the dog would die if _____ to her cruel owners so she kept it.
A.returning
B.was returned
C.it would return
D.returned
如R-R间距为0.6s,则心率为()
A.100/min
B.60/min
C.120次/min
D.80/min
E.75/min