下列说法能体现物质物理性质的是

【名词&注释】

第三人称(third person)、生产规模(production scale)、照相机(camera)、主要内容(main contents)、滤色镜、物质物理性质、接近于(close to)、照明弹(flare)

[单选题]下列说法能体现物质物理性质的是

A. 镁粉用作照明弹^(flare)
B. 铜丝用作导线
C. 氢气用作清洁燃料
D. 二氧化碳用作碳酸饮料

查看答案&解析查看所有试题

学习资料：

[单选题]五一佳节，在常州紫荆公园月季花展上，小明将红色滤色镜(即红色玻璃)挡在照相机镜头前给一株绿叶黄花的月季拍照，照片上该花卉的颜色是（）

A. 绿叶黄花
B. 黑叶红花
C. 黑叶黑花
D. 红叶红花

[单选题]若已建类似项目的规模和拟建项目的规模相差不大，生产规模比值在05～2之间，则指数n的取值为（ ）。

A. 06～07之间
B. 07～08之间
C. 08～09之间
D. 接近于^{(close to)}1

[单选题]have a sore throat． __________ you should see a doctor．

A. May
B. Maybe
C. Can
D. Maybe

[单选题]London-is such a wonderful city．It is very large．The Thames River runs (11) the city from west to east． So the city has (12) parts: the South and the North． In the North， there are important buildings， shops， big parks and interesting places． the weather in London is good． In winter it is not very cold and in summer it is not very hot (13) the city is near the sea． People say (14 ) London is a foggy city and it often rains． It is true．Last year，when l (15) in London， Imet one of the (16) fogs in years． You could hardly see your hands in front of your face． Cars and buses moved -along with their lights on．When evening fell， the weather (17 ) even worse． The fog was as thick as milk．(18) the buses and cars stopped． I happened (19 ) ． an important meeting on the other side of the town， but it was impossible to find a car． I had to get there (20) ．

( )11．

A. about
B. through
C. in
D. along

[单选题]15．

A. is
B. does
C. has
D. have

[单选题]30． There are _______in the drawer．

A. 10 baseballs
B. 12 soccer balls ．
C. 5 baseballs
D. a tennis racket

[单选题]下列属于秦国商鞅变法主要内容的是①国家承认土地私有，允许自由买卖

A. ②奖励耕战，生产粮食、布帛多的人，可以免除徭役
B. ③根据军功的大小授予爵位和田宅
C. ④建立县制
D. ①②③④
E. ①②③
F. ①②
G. ②③

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