下列属于“南南合作”关系的一组是[ ]
A．日本、巴西、澳大利亚
B．埃及、印度、中国
C．法国、新西兰、古巴
D．阿根廷、德国、菲律宾
答案：B
There are some health problems that, when ______ in time, can become bigger ones later on.
A．not treated
B．not being treated
C．not to be treated
D．not having been treated
患者上前牙持续性自发疼痛一天，轻度咬合疼痛，牙龈轻触痛。就诊治疗必须做（）
A.开髓开放
B.给止痛药
C.开髓拔髓封药
D.开髓封失活剂
E.消炎和止痛药
