(13分)(1)某学生判断SO2和Na2O2反应能生成硫酸钠,你认为他的判断合理

题型:实验题

问题:

(13分)(1)某学生判断SO2和Na2O2反应能生成硫酸钠,你认为他的判断合理吗? 

         简要说明你的理由:                                               。

(2)该同学无法断定SO2和Na2O2反应中是否有氧气生成,拟使用下列装置进行实验

装置中B中的试剂为             ,其作用是                                                                  

D中的药品为              ,其作用是                                                                       

(3)为确认SO2和Na2O2反应产物,该同学设计了以下实验步骤,你认为应进行的操作按顺序排列是(填序号)        

A.用带火星的细朩条靠近U形管口,观察细朩条是否着火燃烧

B.将C装置中反应后的固体物质溶于适量水配成溶液

C.在配成的溶液中加入用硝酸酸化的硝酸钡溶液,观察是否有沉淀生成

D.在配成的溶液中先加入盐酸酸化,再加入氯化钡溶液,观察是否有气泡或沉淀生成

考点:设计实验方案及探究实验
题型:实验题

数据库管理系统是

A.操作系统的一部分

B.在操作系统支持下的系统软件

C.一种编译系统

D.一种操作系统

题型:实验题
Step into Wonderland and follow any of the many tracks around Kinabalu Park. Even though it is the most explored and studied place in Borneo, new discoveries of rare plants are frequently being made here.
So take a map and set off on your own or follow Park Naturalists as they take you on guided path walks and point out the various wonders. There are also visual shows advertising rare plants and animals here. If you are a first time visitor, sign up for these shows and you’ll be excited when you find yourself identifying the same plants and animals on your walks or during your climb up Mt. Kinabalu.
Mt. Kinabalu Botanical Garden is one of the biggest attractions at the Park Started in 1981. This 5-acre Garden is an excellent collection of different kinds of plant—life on the mountain, as plants from all over the Park has been replanted here. There are hotels, inns and chalets at Kinabalu Park to suit one’s budget. For more information, click www.sabahtourism.com.
TLMETABLE GUIDEUNE
PLACE / INTEREST
TIME (HRS)
1 KINABALU PARK HQ:
.   Botanical Garden
.   Guided Walk
.   Slide Show
9:00 — 15:00
11:00
14:00 (and 19:30 on weekends)
2. PORING
.   Butterfly Farm
.   Tropical Garden
.   Night Walk
9:00 — 16:00
13:30
By Prior (提前)Arrangement Only
3. MESILAU
Guided Nature Walk
.   Monday to Friday
.   Saturday and Sunday
 
9:30, 11:00, 14:00
7:30, 10:30, 14:00
4. KUNDASANG WAR MEMORIAL
.   Daily (Monday to Sunday)
.    Memorial Services and Special Programmes
10:00-17:00
By Prior Arrangement
Note:
Adult: $ 20.      Kid under twelve: 50% off
Family including two adults and a kid under twelve: $40.
小题1:It can be learnt that _______.
A.Mt Kinabalu is a more explored and studied area than Borneo
B.there’re still some unknown rare plants in Kinabalu Park
C.Mt Kinabalu Botanical Garden attracts visitors due to its long history
D.visitors should follow the Park Naturalists so as not to get lost
小题2:The underlined word “chalets” (in Paragraph 3) most probably refers to “_______”.
A.plantsB.garagesC.cottagesD.tracks
小题3:Which of the following is TRUE according to the passage?
A.Botanical Garden and Butterfly Farm open at the same time.
B.Guided Nature Walk is a favorite of first time visitors.
C.Slide Show is unavailable unless it is arranged in advance.
D.Visitors can have access to Night Walk anytime they wish.
小题4:If a couple visit the Park with their son aged 19, how much will they pay?
A.$30.B.$40.C.$50.D.$60.
题型:实验题

在起重机械的分类中,属于轻小起重机具的是( )。

A.千斤顶

B.缆索式起重机

C.滑轮组

D.汽车式起重机

E.悬挂单轨吊

题型:实验题

下列税种中,全部由国家税务局系统征收但又属于中央、地方共享收入的税种是( )。

A.营业税

B.进口增值税

C.企业所得税

D.个人所得税

题型:实验题

商业银行是指依法设立的吸收公众存款、发放贷款、办理结算等业务的国有事业单位。

A、正确

B、错误

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