题目内容

SQL语言是介于关系代数和________之间的一种语言。

查看答案

搜索结果不匹配？点我反馈

更多问题

Unpopular Subjects Is there a place in today’s society for the study of useless subjects in our universities Just over 100 years ago Fitzgerald argued in a well-written letter ___ (51)Nature that“Universities must be allowed to study useless subjects-_ (52)they don’t，who will，，He went 0n to use the ___ (53)of Maxwell’s electrodynamics_(电动力学)as one case where a“useless subject” has been transformed to a useful subject． Nowadays this argument is again very much ___ (54)in many universities．Indeed one suspects that it is one of those arguments that must be _ (55)anew(重新)by each generation．But now there is an added twist ~)--subjects must not only be useful，they must also be _ (56)enough that students will flock(蜂拥)to d0 them，and even flock to pay to do them． As universities become commercial operations，the pressure to_ (57)subjects or departments that are less popular will become stronger and stronger, Perhaps this is most strongly _ (58)at the moment by physics．There has been much_ (59)in the press of universities that are closing down physics departments and incorporate them with mathematics or engineering departments． Many scientists think otherwise．They see physics as a_ (60)science，which must be kept alive if only to _ (61)a base for other sciences and engineering．It is of their great personal concern that physics teaching and research is under _ (62)in many universities．How Can it be preserved in the rush towards commercial competition A major turnaround(转变)in student popularity may have to_ (63)until the industrial world discovers that it needs physicists and starts paying them well． Physics is now not only unpopular；it is also“hard”．We can do more about the latter by _ (64)teaching in our schools and universities．We can also ___ (65)cooperative arrangements to ensure that physicists keep their research and teaching up to date 55（）

A. fought
B. weighted
C. respected
D. selected

Unpopular Subjects Is there a place in today’s society for the study of useless subjects in our universities Just over 100 years ago Fitzgerald argued in a well-written letter ___ (51)Nature that“Universities must be allowed to study useless subjects-_ (52)they don’t，who will，，He went 0n to use the ___ (53)of Maxwell’s electrodynamics_(电动力学)as one case where a“useless subject” has been transformed to a useful subject． Nowadays this argument is again very much ___ (54)in many universities．Indeed one suspects that it is one of those arguments that must be _ (55)anew(重新)by each generation．But now there is an added twist ~)--subjects must not only be useful，they must also be _ (56)enough that students will flock(蜂拥)to d0 them，and even flock to pay to do them． As universities become commercial operations，the pressure to_ (57)subjects or departments that are less popular will become stronger and stronger, Perhaps this is most strongly _ (58)at the moment by physics．There has been much_ (59)in the press of universities that are closing down physics departments and incorporate them with mathematics or engineering departments． Many scientists think otherwise．They see physics as a_ (60)science，which must be kept alive if only to _ (61)a base for other sciences and engineering．It is of their great personal concern that physics teaching and research is under _ (62)in many universities．How Can it be preserved in the rush towards commercial competition A major turnaround(转变)in student popularity may have to_ (63)until the industrial world discovers that it needs physicists and starts paying them well． Physics is now not only unpopular；it is also“hard”．We can do more about the latter by _ (64)teaching in our schools and universities．We can also ___ (65)cooperative arrangements to ensure that physicists keep their research and teaching up to date 51（）

A. about
B. of
C. to
D. on

Mother Nature Shows Her StrengthTornadoes(龙卷风)and heavy thunderstorms moved across the Great Lakes and into Trumbull County on Saturday evening．：The storms were dramatic and dangerous． George Snyder was driving the fire truck down Route 88 when he first noticed that a funnel(漏斗状的)cloud was behind him．“I stopped the truck and watched the funnel cloud．It was about 100 feet off the ground and I saw it go up and down for a while．It was moving toward Bradley Road and then suddenly it disappeared．”Snyder said． Snyder only saw one of the funnel clouds that passed through northeastern Ohio on Saturday．In Trumbull County, a tornado turned trees onto their sides．Some trees feel onto houses and Cars．Other trees fell into telephone and electrical wires as they went down． Amanda Symcheck was having a party when the storm began．“I knew something was wrong，”she said．“I saw the sky go green and pink(粉红色)．Then it sounded like a train rushing toward the house．I started crying and told everyone to go to the basement for protection．” The tornado caused a lot of damage to cars and houses in the area．It will take a long time and much money to repair everything．There was also serious water damage from the thunderstorms．The heavy rains and high wind caused the power to go out in many homes The storms caused serious flooding in areas near the river．More than four inches of rain fell in parts of Trumbull County．The river was so hight that the water ran into streets and houses．Many streets had to be closed to Cars and trucks because of the high water．’This made it difficult for fire trucks．police cars，and other rescue vehicles to help people who were in trouble Many people who live near the river had to leave their homes for their own safety．Some people reported five feet of water in their homes．Local and state officials opened emergency shelters for the people who were evacuated(撤走)．The Red Cross served meals to them． “This was a really intense storm。”said Snyder． ’People were afraid。Mother Nature call be fierce．We were lucky this time．No one was killed．” There had not been such a severe storm in Trumbull County for a hundred years（）

A. Right
B. Wrong
C. Not mentioned

在德鲁克看来，政府机构是“用经济活动所得的盈余来支付的（）”，管理的目的在于“（）”