( )1. Which of the following has the shortest perimeter(周长)?
A.
B.
C.
D.
A.
B.
C.
D.
答案
D
( )2. In the triangle ABC, AC is parallel to(平行于) DE, DF is parallel to GH. Which of the following statements is true?
A. Angle(角) BHG is smaller than angle BFD.
B. Angle BGH is equal to(相等) angle BDF.
C. Angle BAC is larger than angle BDE.
D. Angle DEB is larger than angle ACB.
A. Angle(角) BHG is smaller than angle BFD.
B. Angle BGH is equal to(相等) angle BDF.
C. Angle BAC is larger than angle BDE.
D. Angle DEB is larger than angle ACB.
答案
B
( )3. 1kg apples cost 5 cents. 1kg pears cost 10 cents and 1kg bananas cost 25 cents. It costs 55 cents to choose two kinds of fruit. How many ways are there to buy the fruit?
A. 7.
B. 8.
C. 14.
D. none of them.
A. 7.
B. 8.
C. 14.
D. none of them.
答案
B
( )4. The proper figure(数字) that should be put in the empty circle is _______.
45 39 36 28 
72
18 
15 3
A. 20
B. 14
C. 8
D. 2
45 39 36 28 72
18 15 3 A. 20
B. 14
C. 8
D. 2
答案
C
二、填空题。
1. Twenty rabbits can exchange two sheep, and nine sheep can exchange three pigs. How many rabbits can exchange eight pigs? __________
2. If we change 2/7 into a decimal number(小数), can you find out the 2023rd number after the decimal point(小数点)? ________
3. How long does it take at least when the minute hand and hour hand meet for the first time after 4 o'clock? ________
4. Among the 100 travelers, 10 understands (理解) neither English nor Russian, 75 understands English, 83 understands Russian. Then _______ travelers understand both English and Russian.
1. Twenty rabbits can exchange two sheep, and nine sheep can exchange three pigs. How many rabbits can exchange eight pigs? __________
2. If we change 2/7 into a decimal number(小数), can you find out the 2023rd number after the decimal point(小数点)? ________
3. How long does it take at least when the minute hand and hour hand meet for the first time after 4 o'clock? ________
4. Among the 100 travelers, 10 understands (理解) neither English nor Russian, 75 understands English, 83 understands Russian. Then _______ travelers understand both English and Russian.
答案
1. 240 2. 2 3. 4/11 h 4. 68
