下列变化不属于缓慢氧化的是( ) A.食物腐烂 B.酿酒 C.红磷燃烧 D.铁生

题型:选择题

问题:

下列变化不属于缓慢氧化的是(  )

A.食物腐烂

B.酿酒

C.红磷燃烧

D.铁生锈

考点:爆炸、自燃
题型:选择题
阅读理解。
     The Video Shop's Winter Sale (大减价) on every CD, VCD and DVD, POP MUSIC, ROCK, JAZZ, DISCO,
COUNTRY & MOVIES.
LIST PRICE. SALE PRICE
$9.5$8.9
$11$9.5
$13.9$11.2
     Sale starts on December 22 and ends on December 30.
     No telephone or e-mail orders (订购) during the sale.
     Open hours:Monday to Friday 9:00 am to 8:00 pm
     Saturday to Sunday 10:00 am to 6:00 pm
     Add: 108 Culture Street
1. The shop _____.
A. sells CDs only
B. is having a sale on everything
C. is having a sale On CD, VCD and DVD
D. is closed
2. _____ are on sale.
A. Only rock CDs
B. Only jazz and country DVD
C. Only movies VCDs
D. All of them
3. You may pay $8.90 for a music CD on December 22. How much should you pay for the same CD On
    November 30th?
A. $8.90.
B. $0.60.
C. $9.50.
D. We don't know.
4. Which of the following is TRUE?
A. You should go to the shop for the CDs, VCDs and DVDs by yourself.
B. You can make a phone call to order the things you want.
C. You can order (订购) through Internet.
D. You can write a letter to order CDs or something.
5. You can buy CDs _____.
A. at 8 am Thursday evening
B. at any time from Monday to Sunday
C. at 8 o'clock Saturday rooming
D. at 5:00 Sunday afternoon
题型:选择题

在特定的环境条件下种群的实际出生率称为()。

A.绝对出生率

B.专有出生率

C.最大出生率

D.生态出生率

题型:选择题

系数的传递函数取决于( )。

A.系统的固有参数和输入量的形式

B.系统结构和输入量的形式

C.输出量的形式和系统结构

D.系统的固有参数和系统结构

题型:选择题

、甲经纪机构每周末向委托人(卖方)电话告知其房屋销售的进展情况,价格变化,市场行情信息等,属于()中的要求。

A、业务招揽规范

B、业务承接规范

C、业务办理规范

D、服务费用收取规范

题型:选择题

两个极性相同的条形磁铁相互靠近时它们会()。

A、相互吸引

B、相互排斥

C、互不影响

D、有时吸引,有时排斥

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