In the （），businesses offer services for which they charge a fee that is based on the number of size of transactions they process. Some of these services lend themselves well to operating on the Web.

A.Fee-for-Transaction Revenue] Model
B.Advertising-Supported] Revenue] Models
C.Web] Catalogue] Revenue] Models
D.Value] chain

参考答案：A

A.红色血栓B.透明血栓C.混合性血栓D.白色血栓E.延续血警

A.红色血栓B.透明血栓C.混合性血栓D.白色血栓E.延续血警

A.红色血栓B.透明血栓C.混合性血栓D.白色血栓E.延续血警

A.脓肿B.化生C.伪膜D.溃疡E.空洞

A.脓肿B.化生C.伪膜D.溃疡E.空洞

A.骨母细胞瘤B.髓母细胞瘤C.间皮瘤D.成熟性畸胎瘤E.迷离瘤

A.骨母细胞瘤B.髓母细胞瘤C.间皮瘤D.成熟性畸胎瘤E.迷离瘤

A.肉瘤B.早期胃癌C.良性肿瘤D.恶性肿瘤E.癌前病变

A.肉瘤B.早期胃癌C.良性肿瘤D.恶性肿瘤E.癌前病变

A.肉瘤B.早期胃癌C.良性肿瘤D.恶性肿瘤E.癌前病变

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