【单选题】如图所示,从地面上同一位置同时抛出两小球A、B,分别落在地面上的M、N点,两球运动的最大高度相同.空气阻力不计,则下列说法正确的是( )
【简答题】早期胃癌(early gastric carcinoma)
【单选题】The short gastric arteries come from
【单选题】which of the following statements is not correct about the gastric emptying?
A.
Gastric emptying is the caudad region of the stomach contracts to propel food into the duodenum.
B.
The rate of gastric emptying is fastest when the stomach contents are isotonic.
C.
If the stomach contents are hypertonic or hypotonic, gastric emptying is slowed.
D.
Fat stimulates gastric emptying (i.e., increases gastric emptying time) by stimulating the release of CCK.
E.
H+ in the duodenum inhibits gastric emptying via direct neural reflexes.
【简答题】gastric emptying imaging
【单选题】如图所示,在某一峡谷的两侧存在与水平面成相同角度的山坡,某人站在左侧山坡上的P点水平抛出三个质量不等的石块,分别落在A、B、C三处,不计空气阻力,A、C两处在同一水平面上,下列正确的是
【判断题】超声引导肝、肾囊肿穿刺时,注入无水酒精的量一般为囊肿液容量的1/5~1/2,以1/4最为理想。