女性,44岁,反复发作上腹部疼痛3年,近3天上腹绞痛,伴发热寒战,皮肤巩膜黄染。该病最可能的原因是
A.肿瘤
B.结石
C.蛔虫
D.炎性狭窄
E.先天畸形
参考答案:C
根据所给内容用现在进行时写一篇作文。
Jenny talk with her friends
Tom drink some pop
Mary sing
John play the guitar
Today is Jenny's birthday. ___________________________________________________
____________________________________________________________________________
How busy they are!
“一把钥匙开一把锁”的说法在教育学体现了人的发展的_______.
A.阶段性
B.不平衡性
C.顺序性
D.个别差异性