标志着七十七国集团成立的文件是什么?
参考答案:七十七国宣言。
深龋已累及牙髓的临床表现如下,不准确的是()
A.主诉食物入洞痛
B.冷测一过性敏感
C.热侧迟缓性疼痛
D.已探明有穿髓孔
E.叩诊已有不适感
Last Saturday, Lucy _____ in the morning, and _____ in the afternoon. [ ]
A. clean her room; go to the library
B. cleaned her room; go to the library
C. cleaned her room; went to the library