“天行健，君子以自强不息”出自于哪部典籍？
参考答案：
“天行健，君子以自强不息”出自于《周易》。
The baseball is on the floor, _____the bookcase and the desk.[ ]
A. on
B. in
C. behind
D. between
慢性萎缩性胃炎
A．胃黏膜腺体萎缩、胃酸缺B．胃黏膜浅层淋巴细胞浸润C．胃黏膜腺体增生、胃酸减少D．胃黏膜腺体增生、胃酸增多
