烤烟种植是以()为目的的。烟株现蕾后,顶部花序生产活跃,营养物质大量向顶部运转,中下

题型:填空题

问题:

烤烟种植是以()为目的的。烟株现蕾后,顶部花序生产活跃,营养物质大量向顶部运转,中下部叶片中养分不断流向顶端,如果任其开花结实。必然导致养分的无畏消耗,使得上部叶(),中下部叶片颜色变(),重量(),降低产量和品质。因此,烤烟生产中除留种植株外,必须进行适时打顶,即将花蕾及其以下数片叶一并摘除。

考点:烟草栽培学烟草栽培学题库
题型:填空题

既能平息内风,又能祛除外风的药物是()。

A.羚羊角

B.天麻

C.钩藤

D.刺蒺藜

E.地龙

题型:填空题


Filled with the euphoria of victory and dreams of their first Big Ten title in 11 years, Penn State University students rushed the field as time expired in their win over Ohio State. In the chaos that followed, the campus police struggled to keep control, and identifying the overzealous fans seemed impossible, impossible, that is, until the police department turned to a new crime-fighting tool: facebook. com.
Penn State officers had warned the students in advance last October that crossing over from the stands was a safety hazard and would not be permitted. When the rules were broken, a quick search online revealed the facebook, com photo album "1 rushed the field after the OSU game and lived." The album creator had even helpfully tagged all of those involved — offering the campus police an easy way to issue stem warnings. "It was really dangerous and not acceptable behavior," says Tyrone Parham, assistant director at the PSU police. "We needed to send a message. We searched the group, contacted the individuals and said that this was not tolerable behavior."
Long a student favorite and the seventh most-trafficked Internet site, facebook. com has found a new following — those who wear blue. Traditionally, campus police forces have followed noise reports in their attempt to keep Saturday nights safe. But the advent of social networking sites is starting to revolutionize campus detective work.
George Washington University police department chief Dolores Stafford claims, "Facebook exists and can certainly be a tool, but we’re not out there looking at the site." Students at the college, however, are not so sure. When rumors flew that campus cops were using the student social network to infringe their right to party, GWU students decided to exact revenge. In a carefully executed plan, students filled facebook, com with chatter about a raging party they were throwing, hoping the police would be watching. They were not disappointed. When the officers arrived, they found shots glasses brimming with chocolate cake, Beirut cups filled with frosting, and party-goers loaded up on sugar rather than alcohol.
While the GWU police deny using the Internet to find the party, the students felt vindicated. "Cake Party" attendee Kyle Stoneman comments: "From a larger standpoint, there’s nothing immoral or illegal about the police using facebook. com. I guess they’ll play their game, we’ll play ours, and we’ll see who wins."
For college police forces, however, the issue is about more than winning. Instead, they try to find that delicate balance between upholding the law (read: preventing underage drinking) and maintaining good relations with the students (read: turning a blind eye). "It’s a never-ending struggle," says Fisher College Chief of Campus Police John McLaughlin. "Like any other college and university, we want this to be as open of a relationship as possible. We don’t want to be too obtrusive and we also don’t want to be too strict. It requires real diligence."

Which of the following is the major concern of the police

A.(A) How to revolutionize campus detective work and combat crime effectively.

B.(B) How to strike a balance between law enforcement and human relationship.

C.(C) How to use facebook, com without being found out by the students.

D.(D) How to end the long standing hostility between the students and the police.

题型:填空题

不论是单元顶极论还是多元顶极论都承认顶极群落是经过()而达到稳定状态的群落

A.双向变化

B.多向变化

C.反向变化

D.单向变化

题型:填空题

( )在社会认知论中有较大的影响。

A.詹姆斯

B.海德

C.谢里夫

D.勒温

题型:填空题

民意调查和市场调查是现代工业社会的产物。

更多题库