1、If a＜b＜0, then the following inequality must be hold ( )
(英语小词典：following：下面的； inequality：不等式)
(A)＜ (B)＞ (C)＞ (D)＜
2、(Figure 1) In the parallelogram ABCD,AD=2AB,a point M is mid- point of gment AD,CE⊥AB,if∠CEM=40°,then the value of∠DME it( ).
(A)150° (B)140° (C)135° (D)130°
3、If N is natural number,and,then the value of N is______.( natural number自然数)
4、Root of the equation is ．
(英汉小字典：root根；equation方程．)
5、In fig. 1, let be an equilateral triangle, D and E be points on edges AB and AC respectively, F be interction of gments BE and CD, and, then the magnitude relation between Ad and CE is （ ）
A. B. C. D. indefinite
butterfly的复数（英汉词典：equilateral等边的；interction交点；magnitude大小，量；indefinite不确定的）
6、 If and are unequal primes, and are unequal positive integers satisfying and, then the value of is ________。（英汉词典：prime质数）
7、（Figure 4）In the trapezium（梯形）ABCD，AD∥BC，point E is midpoint（中点）of the AD，point F is midpoint of the BC，EF＝(BC－AD)，the result of the ∠B＋∠C is （ ）
（A）90° （B）100° （C）110° （D）120°
8、If the radius(半径) of circle Ⅲ in the figure3(图3) is of the radius of circle Ⅱ,and the radius of circle Ⅱ is of the radius of circle Ⅰ,then the area of the shaded region iswhat part of the area of circle Ⅰ?( )
(A)prosperous什么意思; (B);(C);(D)
9、If a,b and c are sieds(边) of the ΔABC,and a2-bc=a(b-c),then the figure(形状) of the triangle(三角形) is_________.(用汉语填写)
10、Given in the △ABC,a,b,c are three sides of the triangle, a=3, b=10 and perimeter of the triangle is multiple of 5, then the length of c is 。
（英汉小词典：side：边；perimeter：周长；multiple：倍数）
11、Given m is a real number, and |1-m|=|m|+1，simplify an algebraic expression, then =( )
(A)|m|-1 (B)-|m|+1 (C)m-1 (D)-m+1
(英汉小词典simplify：化简；algebraic expression：代数式)
12、(Figure 3)In a trapezoid ABCD，开车换挡技巧AE=DE，CE⊥AD，CE is a bictor to ∠BCD，then the ratio of the area of a quadrilateral ABCE to that of a triangle CDE is _____.
(英汉小词典trapezoid：梯形；bictor：平分线；ratio：比值；quadrilateral：四边形)
13、Given in the △ABC ，a，b，c are three sides of the triangle，and，then ∠A is
A．acute angle B．right angle
C．obtues angle D．acute angle or obtues angle
（英汉词典 acute angle：锐角；obtu angle：钝角）
14、Given a，b，c are positive integers，and a，b are prime numbers，，then the value of is（ ）
A．14 B．13 C．12 D． 11
(英汉词典 positive integers：正整数. prime numbers：质数)_
15、repostLet a be integral part of and b be its decimal part．Let c be the integral part of and d be the decimal part.．if ad－bc＝m，then（ ）
（A）－2＜m＜－1 （B）－1＜m＜0 （C）0＜m＜1 （Djery）1＜m＜2
（英汉词典：cpmintegral part 整数部分；decimal part 小数部分）
16、 Let a be the length of a diagonal of a square, b and c be the length of two diagonals of a rhombus respectively. If b:a=a:c,then the ratio of area of the square and rhombus is ( )
（A）1：1．dairy （B）2：． （C）1：． （D）1：2．
(英汉词典：length长度；diagonal对角线；square正方形；rhombus菱形；respectively分别地；ratio比；area面积)
17、Let be a four-digit number. If is a square of an integer, then
A= 或 ．
（英汉词典：four-digit number 四位数；square平方、平方数；integer整数）
18、In the figure， is a diamond，points andlie on its sides and respectively，such that，and is a regular triangle．Then is equal to ( )
A． B．
C． D．
19、If one side of a triangle is 2 tines of another side and it has the largest possible area，then the ratio of its three sides is ( )
A． B． C． D． mayo
（英汉小词：possible可能的；area面积；ratio比率，比值）
20、If the sum of a 4-digit natural number and 17，the difference between it and 72 are all square numbers，then the 4-digit natural number is ．
（英汉小词典：4-digit natural number四位自然数；difference差；square number完全平方数）
21、The number of integer solutions for the system of inequalities about is just 6，then the range of value for real number is （ ）
A．如何开贸易公司 B． C． D．
（英汉词典：integer solution 整数解，system of inequalities不等式组，the range of value取值范围）
22、In the rectangular coordinates，abscissa and ordinate of the interction point of the lines and are integers for integer，then the number of the possible values of is（ ）
A．4 B．5 C．6 D．7
（英汉词典：abscissa横坐标，ordinate留学出国费用纵坐标，interction point交点，integer整数）
23、Given if when takes the value of its inver number，the corresponding value of is also the inver number，and =0，then _______________．
