若P={x|4x-10×2x+16＜0}，Q={x|log3x+log3（x-1）＞log32}，则P∩Q=（ ）
A．（3，+∞）
B．（-1，2）
C．（2，3）
D．（1，2）
P={x|4x-10×2x+16＜0}={x|（2x-2）（2x-8）＜0}={x|2＜2x＜8}={x|1＜x＜3}，
Q={x|log3x+log3（x-1）＞log32}={x|
}={x|x＞2}，x＞0 x-1＞0 x(x-1)＞2
故P∩Q=（2，3），
故选C．
Mr. Smith lives in a village. He has ____ farms and about twenty people working for him. He often tells them ____ hard and be honest. (诚实的). Today he goes to a farm and works with the workers there as usual. Soon it is time ____lunch. He puts ____ nice bread on the table and then ____. A few minutes later he comes back again but he ____ find the bread. “ Who eats____ on the table?” he shouts. Some of the workers answer “ We ____.” The others say, “ We see nothing.” “ Well,”says Mr. Smith, “____ are a lot of mice in the rooms, you know. So I ____ some poison (毒药)in the bread. ____ they eat, they must die. Then I can kill them.” As soon as he finishes, four workers begin to cry. “Oh, dear!” “ What’s wrong with you?” ____ Mr. Smith. “ We eat the bread when you are out. We are going to die.” one of them cries. “ ____,” Mr. Smith says ____ a smile, “ I only ____you. Use your head.”
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