下列关于果胶酶作用的叙述，错误的是（）。 A.分解水果细胞壁中的果胶，从而瓦解细胞壁

跖疣的临床表现除外哪一项：

A．发生于足底或趾间
B．有明显的疼痛，用手挤压疼痛加剧
C．常在外伤部位，足部多汗者易发生
D．皮损为角化性丘疹，中心稍凹，外周有稍带黄色高起的角质环，除去表面角质后，可见疏松的白色 * * 状角质物，捏、掐或挑破后，易出血，数目多时可融合成片
E．损害为针头至蚕豆大小淡黄色或深黄色局限性角质增生，多为正圆形，光滑或半透明，境界清楚，不高出或略高出皮面。角质栓尖端呈楔形嵌入真皮 * * 层

猛安谋克制

—Would you mind turning down the music?

—______ .

A．Yes, I would

B．Yes, I do

C．No, of course.

D．No, not at all.

直接特异性杀伤靶细胞的是（）

A.巨噬细胞

B.中性粒细胞

C.K细胞

D.NK细胞

E.致敏Tc细胞

Many word processing programs include spell checker. It checks the spelling of every word in a (120) by looking up each word in its dictionary. If the word does not appear in the dictionary the user is (121) to possible misspelling and possible corrections are often (122) . Spell checker does not recognize unusual people names or specialized terms, but it will often allow you to create your own personal dictionary of specialized words you often use. Spell checker is a valuable aid to proofreading, but it can not catch the (123) of one correctly spelled word for another (such as form for from). Thus it does not (124) a document is free of spelling errors.

A．alerted

B．alternate

C．guessed

D．guided

E．suggested

F．surprised