单选题Last month, Mars and Earth were at the closest points in their ______ orbits. The distance between the two worlds was 68 million kilometers.

单选题More and more, the operations of our businesses, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purposes can reap substantial rewards. Even worse, a number of people who have done this and been caught at it have managed to get away without punishment. It"s easy for computer crimes to go undetected if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a glowing recommendation from his former employers. Of course, we have no statistics on crimes that go undetected. But it"s disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may been the victims of uncommonly bad luck. For example, a certain keypunch operator complained of having to stay overtime to punch extra cards. Investigation revealed that the extra cards she was being asked to punch were for dishonest transactions. In another case, dissatisfied employees of the thief tipped off the company that was being robbed. Unlike other lawbreakers, who must leave the country, commit suicide, or go to jail, computer criminals sometimes escape punishment, demanding not only that they not be charged but that they be given good recommendations and perhaps other benefits. All to often, their demands have been met. Why? Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused. They hesitate at the thought of a criminal boasting in open court of how he juggled the most confidential records right under the noses of the company"s executives, accountants, and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.

单选题______ the friendship between our two peoples last forever!

单选题Special labor laws protecting women workers tend to

单选题He must have been there before, ________?

单选题{{B}}Directions:{{/B}} Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C, and D on ANSWER SHEET 1. Selection to participate in a top executive-education program is an important rung on the ladder to top corporate jobs. U. S. corporations {{U}}(1) {{/U}} billions of dollars in this form of management development -- and use it to {{U}}(2) {{/U}} and train fast-track managers. Yet one {{U}}(3) {{/U}} of executive education found that less than 5% of the managers {{U}}(4) {{/U}} to these high-profile programs are women -- and minorities are terribly {{U}}(5) {{/U}} as well. The numbers are {{U}}(6) {{/U}}. In regular business {{U}}(7) {{/U}} usually paid for by the participant, not an employer -- there are plenty of women and minorities. Women, for example, {{U}}(8) {{/U}} for about 30% of MBA candidates. Yet in the {{U}}(9) {{/U}} programs paid for by corporations that round out a manager's credentials at a {{U}}(10) {{/U}} career point, usually at age 40 or 45, companies are making only a {{U}}(11) {{/U}} investment in developing female and minority executives. A case {{U}}(12) {{/U}} point: Only about 30% of the 180 executives in Stanford's recent {{U}}(13) {{/U}} management program were women. Most companies say these days they are {{U}}(14) {{/U}} hiring and promoting women and minorities-- and there are some {{U}}(15) {{/U}} trends in overall employment and pay levels so why are companies {{U}}(16) {{/U}} the ball when it {{U}}(17) {{/U}} executive education? The schools {{U}}(18) {{/U}} that they are neither the cause of nor the cure for the problem. A Harvard Business School dean figures that companies are {{U}}(19) {{/U}} of sending their female executives {{U}}(20) {{/U}} they don't want to lose them to competitors.

单选题A new war ______ between the two countries.

单选题 A. p{{U}}ar{{/U}}ticle B. p{{U}}ar{{/U}}tner C. p{{U}}ar{{/U}}tial D. p{{U}}ar{{/U}}ticular

单选题It was ______ he was too clumsy to drive a car that Jim hadn't learned to drive. A. as B. for C. because D. because of

单选题The town ______ a monument to the memory of its heroes who had lost their lives during the war.

单选题The views of Kass and O. T.A. on cloning research are

单选题The first sentence in Paragraph 3 can be best interpreted as______

单选题After a few short but interminable seconds, U. S. Astronaut Neil Armstrong placed his foot firmly on the fine-grained surface of the moon. The time was 10.. 56 pm, July 20,1969. A. inseparable B. fast C. indelible D. long