分泌胃蛋白酶原的是
A．壁细胞B．主细胞C．黏液细胞D．肠嗜铬样细胞
参考答案：B
解析：分泌胃蛋白酶原的是主细胞。
---It is reported that several _________ teams will compete in the 4th World College Students Dragonboat Race ,which will be held in Taiyuan in June.
---I can’t wait to see.
A．controversial
B．complicated
C．consecutive
D．competitive
子宫收缩乏力对母亲的影响，除外下列哪项()
A．可导致膀胱 * * 瘘
B．胎盘滞留
C．产后出血
D．病理缩复环
E．可导致产褥感染
