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3.双曲线的一条渐近线与直线垂直,

则此双曲线的离心率是(    )

  A.    B.     C.     D.

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2.”是“”的(     )

A.充分不必要条件      B.必要不充分条件

C.充要条件         D.既不充分也不必要条件

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1.若复数满足,则在复平面内所对应的点在(    )

A.第一象限    B.第二象限    C.第三象限    D.第四象限

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60.Thanks to the modern electrical_____, housework nowadays has been made easier and easier.

A. facilities          B. instruments        C. appliances         D. tools

appliance“器具,用具”,这里表示“电器”;facilities“设备”;instrument“仪器”;tool“工具”。

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59.There’re more Olympic______ winners per head of population in Australia than in other countries.

A. metal            B. model            C. medal            D. modal

medal“奖牌”;metal“金属”;model“模型,模特,模范”;modal“情态的”。

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58.He holds an important position in the company;_______, I don’t quite trust him.

A. thus             B. furthermore           C. otherwise         D. nevertheless

nevertheless“然而”;thus“因此,这样”;furthermore“此外,而且”;otherwise“否则”。

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57.She bought the painting at a much higher______ than its real_______.

A. value, price        B. price, value        C. value, value           D. price, price

price“价格,代价”,指为获取某物所需付出的代价或作出的牺牲;value“价值,重要性”,主要指人或事物本身所具有的价格及重要性。

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56.Our bodies are strengthened by taking exercise,______ our minds developed by learning.

A. probably          B. likely             C. similarly          D. generally

similarly“相似地,同样地”;probably“可能地”;likely“很可能地”;generally“一般地”。

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55.Every classroom in this modern school is_______ with a new computer.

A. equipped          B. replaced          C. fixed             D. place

equip“装备,配备”;replace“替代”;fix“固定,修”;place“安置,放置”。

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54.Several cars are available within this price________.

A. area             B. filed             C. land             D. range

range“范围”;area“区域”;field“领域”;land“土地”。

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