治疗AS无效的药物是()
A.选择性COX-2抑制剂
B.硫唑嘌呤
C.柳氮磺吡啶
D.非甾体抗炎药
E.雷公藤总苷
参考答案:B
One of her American friends asked her, "Would you please ______ to my apartment for a visit? [ ]
A. come up
B. keep up
C. put up
D. catch up
视皮层神经元有3种不同形式的感受野,分别是()、()和()。