设欲使f（x）在x=0处连续，则b的值是（）． A.1 B.0 C.2 D.a
题型：单项选择题
问题：
设
欲使f（x）在x=0处连续，则b的值是（）．
A.1
B.0
C.2
D.a
题型：单项选择题
第二节根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Every year more people recognize that it is wrong to kill wildlife for “sport”. Progress in this direction is slow because shooting is not a sport for watching and only those few who take part in it realize the cruelty and destruction.
The number of gunners, however, grows rapidly. 67 They are subjected to advertisements of gun producers who describe shooting as good for their health and carrying gun as a way of putting redder blood in the veins(血管). 68 In school they view motion pictures which are supposedly meant to teach them how to deal with arms safely but which are actually designed to stimulate a desire to own a gun.
Wildlife is disappearing because of shooting and the loss of wildland habitat(栖息地). Habitat loss will continue wi
th our increasing population, but can we slow the loss of wildlife caused by shooting? 69
70 Although most people do not shoot, they seem to forgive shooting for sport because they know little or nothing about it. The only answer, then, is to bring the truth about sport shooting to the great majority of people.
Now, it is time to realize that animals have the same right to live as we do and that there is nothing fair or right about a person with a gun shooting the harmless and beautiful creatures. The gunners like to describe what they do as character-building, but we know that to wound an animal and watch it go through the suffering of dying can make nobody happy. 71
A．There doesn’t seem to be any chance if the serious condition of our wildlife is not improved.
B．They are persuaded by gunner magazines with stories honoring the chase and the kill.
C．If, as they would have you believe, carrying guns and killing improve human character, then perhaps we should encourage war.
D．Children who are too young to develop proper judgments through independent thought are led a long way away by their parents who have guns.E. The films children watch at school actually encourage them to have guns of their own.
F. Wildlife belongs to everyone instead of the gunners alone.
G. Most people do not seem to be against hunting because it helps to build human character.