题目内容

下列短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案。 The basic principle of radar is illustrated by what happens when one shouts in a cave. The echo of the shouting (11) the walls helps a person determine the size of the cave. With radar，however，the waves are radio waves instead of (12) waves. Radio waves travel (13) the speed of light，about300,000 kilometers in a second. A radar set (14) a short burst of radio waves. Then it receives the echoes (15) when the waves bounce(反射)off objects. By determining the time it (16) for the echoes to return to the radar set，a trained technician (17) determine the distance between the radar set and other objects. The word“radar”， (18) ，gets its name from the term“radio detection and ranging. ”“Ranging”is the term for detection of the (19) between an object and the radar set. Besides being of critical importance to pilot，radar is (20) for air traffic control，for tracking ships at sea，and for tracking weather systems and storms.

A. sends out
B. works out
C. figures out
D. puts out

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案例一：上官夫妇目前均刚过35岁，打算20年后即55岁时退休，估计夫妇俩退休后第一年的生活费用为8万元（退休后每年初从退休基金中取出当年的生活费用）。考虑到通化膨胀的因素，夫妇俩每年的生活费用预计会以年4%的速度增长。夫妇俩预计退休后还可生存25年，现在拟用20万元作为退休基金的启动资金，并计划开始每年年末投入一笔固定的资金进行退休基金的积累。夫妇俩在退休前采取较为积极的投资策略，假定年回报率为6%，退休后采取较为保守的投资策略，假定年回报率为4%。根据案例一回答问题（计算结果保留到整数位）。目前，上官夫妇手中的20万元资金若以6%的速度增长，20年后即夫妇55岁初的时候会增长为（）。

A. 55,439元
B. 54,234元
C. 644,427元
D. 641,427元

下列短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案。 The basic principle of radar is illustrated by what happens when one shouts in a cave. The echo of the shouting (11) the walls helps a person determine the size of the cave. With radar，however，the waves are radio waves instead of (12) waves. Radio waves travel (13) the speed of light，about300,000 kilometers in a second. A radar set (14) a short burst of radio waves. Then it receives the echoes (15) when the waves bounce(反射)off objects. By determining the time it (16) for the echoes to return to the radar set，a trained technician (17) determine the distance between the radar set and other objects. The word“radar”， (18) ，gets its name from the term“radio detection and ranging. ”“Ranging”is the term for detection of the (19) between an object and the radar set. Besides being of critical importance to pilot，radar is (20) for air traffic control，for tracking ships at sea，and for tracking weather systems and storms.

A. length
B. width
C. distance
D. space

問4 わたしたちは、20 年ぶりに故郷に帰ってきた友人を温かく迎えた。故郷

A. ごきょう 2
B. こきょう
C. ごうきょう
D. こうきょう

問4 わたしたちは、20 年ぶりに故郷に帰ってきた友人を温かく迎えた。温かく

A. あたたかく
B. やわらかく
C. こまかく
D. わかく