人体最大的外周免疫器官是()
A.骨髓
B.胸腺
C.淋巴结
D.脾脏
E.扁桃体
参考答案:D
—Is the new bike expensive?
—Yes, I ______ 1,200 yuan for it. [ ]
A. spent
B. paid
C. took
D. cost
可供出售金融资产期末按公允价值计量,不涉及期末计提减值准备的问题。