SQLiteOpenHelper的2个方法onCreate（)和onUpgrade（)会同时执行

A.updated()

B.onCreate()

C.onUpgrade()

D.insert()

A、onCreate()

B、onUpgrade()

C、insert()

D、updated()

A、onCreate()

B、构造方法

C、onUpgrade()

D、onOpen()

A.onCreate()

B.onUpgrading()

C.onUpdate()

D.onUpgrade()

Write an essay on the given topic, On unrestrained Consumption. Based on the following outline, present your argument with supporting details of no less than 250 words. You should write neatly on the ANSWER SHEET.

1．人们在节假日无节制消费

2．大量消费对个人和社会的影响

3．我的看法……

Write an essay entitled, On Unrestrained Consumption according to the following outline in no less than 250 words. You should write neatly on the ANSWER SHEET.

1．人们在节假日无节制消费

2．大量消费对个人和社会的影响

3．我的看法……

A. 32

B. 64

C. 16

D. 128

Internet use appears to cause a decline in psychological well-being, according to research at Carnegie Mellon University.

Even people who【C1】______just a few hours a week on the Internet【C2】______more depression and loneliness than those who logged on less【C3】______, the two-year study showed. And it wasn't that people who were already feeling【C4】______spent more time on the Internet, but the using the Net actually【C5】______to cause the bad feelings.

Researchers are puzzling over the results,【C6】______were completely contrary to their【C7】______. They expected that the Net would prove socially【C8】______than television, since the Net【C9】______users to choose their information and to【C10】______with others.

The fact that Internet use has【C11】______time available for family and friends may【C12】______for the drop in well-being,【C13】______hypothesized(假设). Faceless, bodiless virtual communication may be less psychologically satisfying than actual【C14】______, and the relationships formed through it may be【C15】______. Another possibility is that exposure【C16】______the wider world via the Net makes users【C17】______satisfied with their lives.

"But it's important to remember this is not about the technology itself; it's about【C18】______it is used," says psychologist Christine Riley of Intel, one of the study's sponsors. It really points to the need for considering social【C19】______in terms of how you design applications and services【C20】______technology.

【C1】

A．took

B．spent

C．cost

D．paid

PON是基于一种()拓扑的技术。

A.OLT

B.ONU

C.P2P

D.P2MP