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将一个基址寄存器的内容加上一个变址寄存器的内容形成操作数的有效地址，这种寻址称为【】寻址方式。

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Most people do not think of fishes and other sea animals as having voices, and of those who are aware of the fact that many of them can "speak", few understand that these "conversations" have significance. Actually, their talk may be as meaningful as much of our own. For example, some sea animals use their "voices" to locate their food in the ocean expanses (广阔的区域); others use their "voices" to let their fellows know of their locations; and still others, as a means of obtaining mates. Sometimes, "speaking" may even mean the difference between life and death to a sea animal. It appears in some cases that when a predator (食肉动物) approaches, the prey (被捕的动物) depends on no more than the sounds it makes to escape.Fish sounds are important to man, also. By listening to them, he can learn a great deal about the habits of creatures that make them, the size of the School they form, the patterns of their migrations, and the nature of the environments in which they live. He can also apply this information to the more effective utilization of the listening spots he has set up to detect enemy submarines (潜水艇). A knowledge of fish sounds can avoid confusion and unneeded effort when a "new" sound is picked up and the sound sentry (哨兵) must decide whether or not to call an alarm. In some cases, when a predator approaches, fishes escape on hearing （）

A. the sounds of other species
B. the sounds of their prey
C. the sounds of the approaching enemy
D. the sounds of their fellows

我国现行税法规定，纳税人销售的应税消费品，如因质量等原因由购买者退回，经所在地主管税务机关审核批准后，可退还已征收的消费税税款。 ( )

A. 对
B. 错

男，5岁，患肾病综合征2年，1周来腹痛。查体全腹压痛、肌紧张，移动性浊音阳性，听诊肠鸣音消失。患儿最可能的诊断

A. 继发性肠痉挛
B. 急性阑尾炎
C. 原发性腹膜炎
D. 穿孔性腹膜炎
E. 坏死性腹膜炎

中国公民郑某是一名高级工程师，2011年4月工资收入10000元，另有以下收入： (1)一次取得建筑工程设计费50000元，同时从中拿出20000元通过民政局向希望工程捐赠。 (2)取得利息收入8000元，其中国债利息4000元，单位集资利息4000元。 (3)将2010年研发的一项技术的使用权进行转让，取得收入40000元。 (4)业余撰写短篇技术论文，在某报刊上连载，2个月的稿酬收入分别为40000元和20000元。 (5)当月被派遣到某外资企业提供业务指导，当月外资企业支付其工资35000元(需上交派遣单位40%，有合同证明)，原派遣单位仍支付其工资10000元，已知派遣单位和雇佣单位均扣缴了个人所得税。 (6)将其所持有的一项专利的使用权分别转让给A和B两个厂商，分别取得转让收入3800元和4200元。要求：根据以上资料，按照下列序号计算回答问题，每问需计算合计数。计算工程设计费应缴纳的个人所得税。