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advisebe fascinated bycomplaindefeatdefine . . . as . . .electfill outget involved inin commonin one's lifetimesurroundturn downWith his good education and rich life experience, Mr. Smith was again__________ chairman of this organization.

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advisebe fascinated bycomplaindefeatdefine . . . as . . .electfill outget involved inin commonin one's lifetimesurroundturn downThomas Edison_ genius1 percent inspiration and 99 percent perspiration.

下列哪种物质不是环磷酰胺的活性代谢物

A. 丙烯醛
B. 磷酰氮芥
C. 氮芥
D. 异环磷酰胺

亚硝基脲类药物属于

A. 破环DNA结构和功能的药物
B. 抑制肿瘤血管生长的药物
C. 干扰DNA合成的药物
D. 抗有丝分裂的药物

生物烷化剂以什么方式与DNA结合而使其失活或分子断裂

A. 共价键
B. 离子键
C. 氢键
D. 配位键