关于X线影像信息的传递及影像形成的叙述，错误的是 （） A.被照体的信息分布于三维空

在深度为7的满二叉树中，叶子结点的个数为______。

A．32

B．31

C．64

D．63

为明确诊断应做（）。女孩，5岁，发热4天，伴头痛呕吐，发现左下肢不能站立行走，查体，体温38．0℃，神志清，左下肢肌力Ⅱ级，膝跟腱反射未引出，无病理反射，双下肢痛觉存在

A．血常规

B．脑脊液检查

C．血沉

D．血脑脊液病毒分离

E．血pH及血钾

将下列我国各地的民居与其相符合的自然环境用直线连接。

女性，32岁，突然寒战、高热，伴腰痛，尿频、尿急、尿痛3天就诊。查体：肾区有叩击痛，化验：尿蛋白（+），镜检：白细胞满视野，白细胞管型0～2个/HP，最可能的诊断是（）

A.急性肾小球肾炎

B.慢性肾小球肾炎急性发作

C.急性肾盂肾炎

D.慢性肾盂肾炎隐匿型

E.急性膀胱炎

In my opinion, there is only one legitimate (合法的) handgun sport and that is aim practice. It is practiced at objects which are properly monitored and usually quite safe. Only certain handguns are true “sporting weapons”, seen as such by the sport’s lovers.

On the other hand, shooting at tin cans and other small objects in one’s backyard is not and should not be considered a serious sport. When uncontrolled, it can be a very dangerous practice.

Some opponents (反对者) of handgun control have stated that we are out to stop all hunting and that controlling the handgun would severely affect hunting. That is simply untrue. Handgun control would in no way limit the freedom of the true hunter. Few if any hunters consider the handgun an effective hunting weapon.

There are a few hunters who do hunt with handguns, but most states place restrictions (限制) on the type of guns that can be used in hunting, the reason is that killing of game should be done in as humane (人道的) a way as possible. Some small handguns are more likely to wound the animal rather than kill it at once. Only long guns, rifles and shotguns are effective arms of hunting.

People must understand that handguns and hunters are separate matters. Because most of the hunters use a rifle or shotgun, there is no reason why their search for game and sport should be affected by handgun control. Mixing the anti-hunting matter with the handgun matter confuses the killing of animals with killing of people.

小题1:In the writer’s opinion, people should use handguns only when           .

A．hunters shoot at animals

B．they aim at a criminal

C．objects are under control

D．objects are only small tin cans in the backyard小题2:According to the writer, hunting is not affected by handgun control because         .

A．hunters can use knives rather than guns to hunt animals

B．state government encourages hunters to use other guns

C．nobody cares what weapons are used to kill animals

D．most hunters use rifles rather than handguns小题3:This passage mainly talks about           .

A．the relation between hunting and handgun control

B．the importance of aim practice

C．how handgun control affects hunting

D．different types of guns used in hunting