1.函数h(x)是1到x之间所有偶数的乘积。问h(100)+1的最小质因子是落在哪个区域?
a:2到10;b:10到20;c:20到30;d:30到40;e:40以上
2.x^2+6x+q, what is the value of q?
1 . X^2+6x+q=x^2+rx+r-2. some r is satisfied for this quotation. All variable X is satisfied for this
2 . x^2+6x=Q=(x+m)(x+n), some m and n is satisfied for this quotation. All variable X is satisfied for this
3.三个考官考30学生,A认为15名过,B认为17名过,C认为18名过。只有三人都过者才叫过,问至少有几人过了。
4.60 cars, either full-size or compact or sports. 31 is white, 10 is red, 19 is blue, how many cars are full-size?
(1). Not all red and blue cars are full-size.
(2). The number of full-size is greater than the sum of compact and sport cars.
5.K=0.1-(0.1)^2, 问X>0.5?
1). K<0.009/X,2). K>0.0009/X