The children talked so loudly at dinner table that I had to struggle ____.
A．to be heardB．to have heardC．hearingD．being heard
The children talked so loudly at dinner table that I had to struggle ____.
A．to be heardB．to have heardC．hearingD．being heard
The children talked so loudly at dinner table that I had to struggle ____.
A．to be heardB．to have heardC．hearingD．being heard
The children talked so loudly at dinner table that I had to struggle ____.
A．to be heardB．to have heardC．hearingD．being heard
The practice of hanging clothes across the street is a common ___ in many parts of the city.
A．lookB．signC．sightD．appearance
The practice of hanging clothes across the street is a common ___ in many parts of the city.
A．lookB．signC．sightD．appearance
The sequence（序列）
1
1
，
1
2
，
2
2
，
1
3
，
2
3
，
3
3
，
1
4
，
2
4
，
3
4
，
4
4
，
1
5
，
2
5
，…，then the 2003rdnumber is
 
．
The coordinates of the three points A．B．C on the plane are （-5，-5），（-2，-1）and（-1，-2）respectively，the triangle ABC is（　　）
（英汉小词典：right直角的；isosceles等腰的；equilateral等边的；obtuse钝角的）
The number of integer solutions for the syetem of inequalities 
x-2a≥0
3-2x＞-1
 about x is just 6，then the range of value for real number a is（　　）
（integersolutions整数解；syetem of inequalities不等式组；the range of value取值范围）
A、-2.5＜a≤-2
B、-2.5≤a≤-2
C、-5＜a≤-4
D、-5≤a≤-4
The symbol（符号） 5！is called five factorial（阶乘）and means 5×4×3×2×1；Thus（因而）5！=120．How many 6！=？What is the result of 
(n-1)!
n!
？Do you know 6！=
 
； 
(n-1)!
n!
=
 
？．
 0  84932  84940  84946  84950  84956  84958  84962  84968  84970  84976  84982  84986  84988  84992  84998  85000  85006  85010  85012  85016  85018  85022  85024  85026  85027  85028  85030  85031  85032  85034  85036  85040  85042  85046  85048  85052  85058  85060  85066  85070  85072  85076  85082  85088  85090  85096  85100  85102  85108  85112  85118  85126  159627 

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