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Worksheets下半场
Total questions: 54
Worksheet time: 33mins
Which statement is true for the function f (x) = 1/(x+4)
4 is not in the range of the function.
4 is not in the domain of the function.
-4 is not in the range of the function.
-4 is not in the domain of the function.
Crocodiles are mammals.
True
False
Billy has a mental age of 8 and a chronological age of 10. Billy's IQ is
80
40
140
180
What is the reciprocal of -3?
1/3
-1/3
3
-3
Which is equivalent to 49^ 2?
21
98
294
343
Carol is three times older than Andrew. Brad is two years older than Andrew. In six years, the sum of Andrew’s and Brad’s ages will be the same as Carol’s age. How old is Carol?
24
27
30
33
Gases that stop heat from escaping into space are called _______ gases.
blackhouse
greenhouse
orangehouse
purplehouse
Which of the following is another word for reliability?
dependence
consistency
relevance
validity
The resources used in the production of goods and services are limited, so society must。。。
Make choices about how to use resources.
Try to obtain additional resources.
Reduce their use of resources.
All of the above
Helena took a(n) __________ test which indicated that she could excel in teaching English as a second language.
IQ
achivement
technology
special aptitude
Utility (效用) is a measure of what?
Value
money
Usefulness
Satisfaction
After a 20% price decrease, the cost of an item is $4.20. What was the original price?
$4.40
$5.04
$5.00
$4.96
$5.25
What is the purpose of a free-market system (自由市场)?
To protect the conditions that enable
specialization （特别化）
To stimulate (激励) the growth of the gross domestic product
To raise the standard of living for everyone in the
country
To allow consumers and producers to make their
own decisions
The law of demand (需求定律) means?
As the quantity demanded rises, the price rises
As the price rises, the quantity demanded rises
As the price rises, the quantity demanded falls
As supply rises, the demand rises
A cab ride costs $3.25 for the first half-mile and $0.70 for each mile after
the first half-mile. How far can someone travel for $12?
14 miles
9 miles
26 miles
13 miles
Which expression represents the quotient? (8x^6z^4 +4x^4z^2)/( 4x^2 z)
2x^3z^4 +x^2z^2
2x^4z^3+x^2z
4x^3z^4 +3x^2z^2
4x^4z^3+3x^2z
After a 20% price decrease, the cost of an item is $4.20. What was the original price?
$5.04
$4.96
$4.40
$5.25
Carol is three times older than Andrew. Brad is two years older than
Andrew. In six years, the sum of Andrew’s and Brad’s ages will be the same
as Carol’s age. How old is Carol?
42 years old
36 years old
24 years old
30 years old
12. What is the completely simplified equivalent of
(x^2 + x -12)/(X^2-6x+9) ?
2x^2+7x+21
(x+4)/(x-3)
(x-3)/(x+4)
2x^2 +5x-3
Fat content (脂肪）is higher in yolk(蛋黄) and egg white?
egg
yolk
What kind of physical phenomenon is the "long tail" left by an airplane flying in the air?
Refraction of light（光的折射）
Diffusion phenomenon （扩散现象 ）
Energy conversion（能量的转化）
Water vapor condensation（水汽凝结）
Where is the origin of coffee？
Asia
America
Oceania
Africa
What is the most common color that is difficult to distinguish in color blind patients（色盲患者）？
Blue and green
Red and green
Green and blue
Red and blue
Solve the equation for x. |x + 5| = 3
-8，-2
-8， -3
-8
-3
-2
Do fish have ears?
yes
no
The goal of a pure market economy is to meet the desire of?
Consumers
Companies
Workers
The government
Solve the following pair of equations for x and y: 2x-y=5 and 4x+y=7
x2,y1
x2,y1
x=1,y=3
d) x=6,y=17
Which of the following countries is known as the “Kingdom of Soccer"?
Germany
Italy
Argentina
Brazil
Which state is Hollywood located in
Alaska
Hawaii
California
Nebraska
Which province has the most ethnic minorities （少数民族）in China?
Guangxi
Xinjiang
Yunnan
Inner Mongolia（内蒙古）
In China's convertible international currency, which currency is the most valuable?
US dollar
pound
Yen
Italian dollar
How long does the earth take to rotate once?
About 24 hours
About half a year
About 365 days
About 30 days
The normal heart rate of the human body
50 times per minute
75 times per minute
65 times per minute
70 times per minute
Biden is a member of which party?
Free will（自由意志）
Republican（共和）
Democratic（民主）
Constitutional （宪法）
When people sleep, the best sleeping position is：
Lying on the right side(右侧躺）
Lying on the left side（左侧躺）
Lying on your back（平躺）
What does SST mean (in RDF)？
Steven Service Time
Silicon Storage Technology
Sales and Services Tax
Social Security Teacher
What's the posture of the lambs（小羊羔） when they are suckling（吃奶）
stand lie（躺着）
kneel（跪着）
lie down（趴着）
What do RDF students need to wear every Monday morning?
House Shirt
White Polo
school formal uniform
Pajamas (睡衣）
Will obese cells (肥胖细胞) disappear (消失) after losing weight?
yes
no
What does the inflation（通货膨胀） rate indicate?
How far in debt the government is
How much the minimum(最小值) wage has increased
How quickly prices are rising
How much interest is being charged on mortgages
Sometimes when it thunders, we only see the lightning and don't hear the thunder. This is because
This time the thunder was silent（无声的）
The thunder has weakened because of the distance
The thunder was absorbed by the struck object（被击中的物品）
Which city is the "city that never sleeps" in China?
Wuhan
Shanghai
Mohe
Harbin
A cab ride costs $3.25 for the first half-mile and $0.70 for each mile after the first half-mile. How far can someone travel for $12?
9
13
14
15
What is the capital of the United States?
New York
Virginia
Washington
Los Angeles
Where did the inventor of Air Conditioner come from?
France
USA
Germany
UK
What does mosquito suck blood for?
Development
Energy supplement
Mating
Laying Eggs
Water Ballet also known as:
Free Style（自由泳）
Synchronized Swimming（花样游泳）
Diving（跳水）
Butterfly Stroke（蝶泳）
The largest palace complex （建筑群）in the world:
the Palace Museum（故宫）
the White House（白宫）
Elysee Palace（爱丽舍宫）
Kremlin Palace（克里姆林宫）
The best speed to lose weight (减肥) is:
Weight loss 2kg / week
1kg / Day
1-2kg / month
5 kg per month
What are the trace elements（微量元素） in apples that enhance（增强） memory?
Iron(铁)
Zinc(锌)
Calcium(钙)
Iodine(碘)
Which country invented Rubik's Cube
the United States
Arabia（阿拉伯）India
Hungary（匈牙利）
When was new China founded？
1949
1977
1821
1933
4.The daily amount of salt should not exceed how many grams?
7g
6g
12g
Which city is the origin of Longjing tea, one of the four famous teas?
Anhui
Fuzhou
Lijiang
Hangzhou
