下列家庭小实验中不涉及化学变化的是 A.世博会开幕燃放烟花 B.用糯米、酒曲和水

题型:选择题

问题:

下列家庭小实验中不涉及化学变化的是

A.世博会开幕燃放烟花

B.用糯米、酒曲和水制甜酒酿

C.用NaOH溶液制作叶脉书签

D.用明矾溶液制明矾晶体

考点:物理变化和化学变化的特征和判别物理性质和化学性质的区别和应用氨气的性质二氧化硫的性质
题型:选择题
阅读配对。左栏是对5个人想参加的活动的描述,右栏是8个活动的简介,请为每个人选择最适合
参加的1项活动。
( )1. Ronin and Joe will get married
          next month. They need much money
          to buy a house and a car.
( )2. Paul is a basketball fan. He plays
          basketball every day and he watches
         basketball match on TV in the evening.
( )3. Oliver is from Canada. He is now in
         China. He wants to know more about
         Chinese customs (风俗).
( )4.  Keller is six years old. There is
          something wrong with her eyes
          and ears. She couldn't see or hear since
          she was two.
( )5. Ferry wants to know something about
           dolphins, bears, kangaroos and birds.




















A. CCTV-1
    (The programs are as follows:
    18:30 Children's World, 19:30 News,
    19:45 Around the world,
    20:20 Message from the Market)
B. Asian Basketball Championship (锦标赛)
    (Yao Ming has come back to China. He
     will join in the Asian Basketball Championship
      in September in Harbin.)
C. International Bank (国际银行)
    (The bank offers a range of services (服务)
     including signature loans (个人贷款) and other
     loan types with low rates.)
D. New Life School
    (The teachers there are very
    friendly and they can bring new hope to many
     blind and deaf (聋的) people.)
E. YCSXTV(The programs tonight are as follows:
     18:30 World News,
     19:00 Pop Songs,
     19:30 Animal World,
     20:20 Science and Life)
F. Chinese Dragon Boat Festival (端午节)
    (People eat rice dumplings and have dragon
    boat races on a river to celebrate it on May the
    fifth.)
G. Blue Sky Hotel
    (A newly open hotel that has
    150 rooms and swimming pools.
     It's near the downtown.)
H. A Camping Holiday
     (A group of young people are going
    on a camping holiday. They take with then
    some rice, some vegetables, some potatoes
     and so on.)
题型:选择题

对单项式-ab3c,下列说法中正确的是(  )

A.系数是0,次数是3

B.系数是-1,次数是5

C.系数是-1,次数是4

D.系数是-1,次数是-5

题型:选择题

近年来,一些“侨乡”地区吸引了大量海外华人、华侨的投资,从工业区位角度看,主要影响因素是

A.自然条件好

B.原材料充足

C.乡土情感

D.科技力量雄厚

题型:选择题

女73岁,牙列缺失,戴用全口义齿2周后,自觉上唇处疼痛,左侧咬食物时义齿不脱位,右侧咬食物时义齿脱落,有时会咬伤颊部软组织,查见上唇系带处有一个直径约2mm的溃疡

患者咬颊的原因除外()。

A.后牙排列偏颊侧

B.面有尖锐边缘

C.颊部软组织过于肥厚

D.后牙覆盖过大

E.后牙覆盖过小

题型:选择题

习 * * 在讲话中总结到()是思想之母,()是理论之源

A、实践;时代

B、时代;实践

C、理论;思想

D、真理;科技

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