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问题 单项选择题

甲将自有房屋转卖给乙，合同约定乙先支付房款的50%，一个月内付清余款时共同办理变更登记。10天后，因不知情的丙愿出高价购买该房屋，甲又与丙订立买卖合同，丙当即付清全部房款，双方办理了房屋变更登记手续。甲欲退还已收房款给乙，但乙坚持要房。对该房屋所有权的归属，下列说法正确的是（）。

A.乙与甲的合同在先，且已经履行，应当确认房屋产权归乙

B.丙已付清全部购房款，应当确认房屋产权归丙

C.丙已与甲办理了房屋所有权变更手续，应当确认房屋产权归丙

D.丙在不知情的情况下与甲订立合同，应当确认房屋产权归丙

答案

参考答案：C

选择题

下列关于糖类、脂肪和蛋白质的叙述正确的是

A．蛋白质溶液遇CuSO4后产生的沉淀能重新溶解

B．淀粉水解的最终产物是葡萄糖

C．葡萄糖能发生氧化反应和水解反应

D．植物油不能使溴的四氯化碳溶液褪色
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单项选择题

Serialization delay and (71) delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the (72) on the wire, and queuing delay (depth of the queue) are improved by increasing the (73) from a 128Kbps circuit to a T1. However, three other components of delay, routing/switching deiay, distance delay, and protocol delay are components that can not be positively affected by an (74) in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the (75) of the application will only result in an increased bandwidth with no positive effects on performance.

（73）是（）

A.memory

B.cache

C.bandwidth

D.delay
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