黑变病的好发人群是（） A.青年女性 B.青年男性 C.中年女性 D.中年男性 E.

下列句中划线的成语，运用不正确的一项是（）

A．炭疽病已使整个美国满城风雨，美国各地均出现抢购防毒面具的热潮。美国一家公司已向智利定购十万个防毒面具。

B．经历了二十多年战乱的喀布尔早已满目疮痍，根本看不出因为美军空袭的更加破败。

C．在10月9日晚的轰炸中，美军击中了塔利班领导人奥马尔的住所，但奥马尔在袭击前15分钟早巳瞒天过海，人去楼空。

D．说起中国男足出线的那场球，他是眉飞色舞，激动万分。43年了，他的激动是可以理解的。

下列处罚种类中属于《治安管理处罚法》新增加的处罚种类为（）。

A、没收

B、收缴

C、责令停业整顿

D、吊销公安机关发放的许可证

如如图所示，在试管中装一些水，用软木塞塞住，加热使水沸腾，水蒸气会把软木塞冲开．在这一过程中，水蒸气膨胀时对软木塞______，消耗了水蒸气的一部分______能，转化为软木塞的______能．根据这个原理，可以制造出______机．

电子计算机分为三类：( )和混合计算机。

A．电子模拟计算机和通用计算机
B．微型计算机和专用计算机
C．通用计算机和专用计算机
D．模拟计算机和数字计算机

Lying in the sun on a rock, the cougar saw Jeb and his son, Tom, before they saw it. Jeb put his bag down quickly and pulled his jacket open with both hands, making himself look big to the cougar. It worked. The cougar hesitated, ready to attack Jeb, but ready to forget the whole thing, too.
Jeb took off his jacket, grasped Tom and held him across his body, making a cross. Now the cougar’s enemy looked even bigger, and it rose up, ready to move away, but unfortunately Tom got scared and struggled free of Jeb.
"Tom, No!" shouted his father.
But Tom broke and ran and that’s the last thing you do with a cougar. The second Tom broke free, Jeb threw himself on the cougar, just as it jumped from the rock. They hit each other in mid air and both fell. The cougar was on Jeb in a flash, forgetting about Tom, which was what Jeb wanted. Cougars are not as big as most people think and a determined man stands a chance, even just with his fists. As the cougar’s claws got into his left shoulder, Jeb swung his fist at its eyes and hit hard. The animal howled (吼叫) and put its head back. Jeb followed up with his other fist. Then out of the comer of his eye, Jeb saw Tom. The boy was running back to help his father.
"Knife, Tom," shouted Jeb.
The boy ran to his father’s bag, while Jeb started shouting as well as hitting, to keep the cougar’s attention away from Tom. Tom got the knife and ran over to Jeb. The cougar was moving its head in and out, trying to find a way through the wall. Jeb was making out of his arms. Tom swung with the knife, into the cougar’s back. It howled horribly and ran off into the mountains.

What do we know about cougars

A．They are afraid of noises.

B．They hesitate before they hit.

C．They are bigger than we think.

D．They like to attack running peopl