东风11型机车柴油机喷油泵下体孔直径限度为()。
A. 74mm
B. 75mm
C. 76mm
D. 77mm
患者,女性,26岁。妊娠39周,做产后乳房护理不正确的指导是()。
A. 按摩乳房
B. 喂奶后,挤出乳汁涂抹于乳头上
C. 用湿毛巾擦洗乳头
D. 用乙醇擦洗乳头
E. 热敷
The effects of free surface on a vessel’s initial stability do NOT depend upon the().
A. volume of displacement of the vessel
B. dimensions of the surface of the liquid
C. amount of liquid in slack tanks
D. specific gravity of the liquid in the tank