与预算内资金相比，预算外资金的特点不包括( )。 A．资金征用方式具有集中性 B

阅读理解。

     Thomas Adams, an American inventor, is the father of modern bubble (泡泡) gum. During the 1870s,

Adams discovered a new way to make chewing gum by accident, while he was trying to find a use for chicle (糖胶树胶)- Mr. Adams wanted to make rubber (橡胶) from chicle.

     Mr. Adams worked for a long time trying to make rubber from chicle. His oldest son also helped him

sometimes. But they never discovered a way to make it work. One day, Thomas Adams was in a store when

he heard a young girl ask for some chewing gum. Adams and his son had been chewing chicle while they

were working on the rubber, so he decided to give up trying to make rubber from the chicle and make gum

instead. At that time, chewing gum was made from spruces' sap (云杉树液). This chewing gum didn't taste

very good. Adams thought chewing gum from chicle tasted better. He and his son wrapped small pieces of

chicle in colorful paper and sold it. People everywhere began chewing his gum at once.

     Mr. Adams' gum could make bubbles, but the bubbles were very sticky (胶粘的). Until 1928 Walter

Diemer found a way to improve chewing gum by making bubbles that were not sticky.

1. Where was Thomas Adams from?

A. The United States.

B. The United Kingdom.

C. Australia.

D. Spain.

2. The word "wrapped" here in Chinese means "_________.

A. 掩饰

B. 遮蔽

C. 包裹

D. 覆盖

3. What did Thomas Adams give up trying to make?

A. A new kind of paper.

B. A new kind of rubber.

C. A new kind of chicle.

D. A new kind of drink.

4.Which of these sentences is NOT TRUE?

A. Mr. Adams thought spruce gum didn't taste as good as chicle gum.

B. Mr. Adams never found a way to make rubber from chicle.

C. Mr. Adams is the father of modern bubble gum.

D. Mr. Adams was the first person to sell gum.

5. What was the difference, between Mr. Diemer's gum and Mr. Adams' gum?

A. Mr. Diemer's gum could make bubbles.

B. Mr. Diemer's gum was less sticky.

C. Mr. Diemer's gum was made from tree sap.

D. Mr. Diemer's gum was sold in colorful paper.

“岛寇荼毒，痛及滇西。谁无血气，忍弃边陲。桓桓将士，不顾艰危。十荡十决，甘死如饴。瘗忠有圹，名勒丰碑。懔懔大义，昭示来兹。”这段碑文纪念的是[ ]

A．国民革命军第八路军

B．中国远征军第八军

C．中国人民解放军

D．中国人民志愿军

军队财务条例规定：各项经费支出必须取得（）的原始凭证，并由经办人员和审核人员签字或者盖章。

A.真实、合法

B.合理、合法

C.完整、有效

D.完整、明细

低碳城市是一个新生事物，没有现成可借鉴的模式。专家指出，对低碳经济的认识问题上，首先需要澄清“低碳等于贫困”、“低碳等于高成本”等误区。低碳经济是在较高的文明发展水平前提下，出现的一种碳生产力水平较高、但人均碳排放水平较低的经济状态。在这个过程中，能源结构的清洁化和资源禀赋起着决定性作用，单位产出所需要的能源消耗不断下降。
“这个过程”指的是( )。

A．建设低碳城市的过程
B．提高社会文明程度的过程
C．降低人均碳排放水平的过程
D．转变对低碳经济认识的过程

存储器的存取时间和存取周期有什么区别？