妊娠是由()开始,经过()、()、(),直至分娩为止的生理过程。
参考答案:卵细胞受精,受精卵卵裂,胚胎发育,胎儿阶段
A police officer in a small town stopped a motorist who was speeding down Main Street. "But officer," the man said, "I can explain." "Just be quiet!" snapped the officer. "Or I’m going to let you cool off in jail until the chief gets back." "But officer, I just wanted to say... " "And I said KEEP QUIET! Now you’re going to jail!" A few hours later, the officer checked up on his prisoner and said," Lucky for you the chief is at his daughter’s wedding. He’ll be in a great mood when he gets here. " "Don’t count on it," said the prisoner. "I’m the groom; he is my father-in-law. \
颜面疔疮的早期临床特征是:()
A.疮形如粟,肿势局限,顶高根软
B.疮形如粟,疼痒相兼,肿势弥漫
C.疮顶凹陷,红热灼痛,肿势弥漫
D.疮形如粟,根深坚硬,如钉丁之状
E.疮形粟粒状脓头,或麻或痒,肿势弥漫