在下列犬、猫的正常生理现象中不属于条件反射的是()
A、吃奶
B、呼吸
C、排便
D、食物反射
参考答案:D
At Spring Festival, we _ a big family dinner. [ ]
A. has
B. have
C. had
CT示:类圆形,边界清楚,圆滑,内密度均质,眶尖有三角形透明区,诊断为()
A.淋巴管瘤
B.皮样囊肿
C.海绵状血管瘤
D.脉络膜骨瘤
E.以上均可出现