给下列句子加上标点符号，使其表示各种不同的意思。

(1)这条鱼不大好吃

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    ②                                                                                                 

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(2)我同意他同意你怎么样 

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76岁男性患者，因全身骨痛，X线提示多发骨转移，行FDGPET/CT显像，图像示：全身多个脊椎骨、盆骨骨质破坏，代谢活跃；前列腺增大，局部FDG轻度浓聚。患者自述前列腺肥大病史。则下列哪种肿瘤标志物有助于诊断（）。

A.CEA

B.CA12-5

C.CA19-9

D.PSA

E.SCCAg