机械通气时潮气量的选择常用()
A.5mL/kg
B.10mL/kg
C.15mL/kg
D.20mL/kg
E.25mL/kg
参考答案:B
The boy is ______ to leave home.
A.possible
B.probable
C.likely
D.possibly
中国居民平衡膳食宝塔建议每人每天油脂类摄入( )。
A.≥50g
B.<50g
C.25g~50g
D.≤25g