对于发行人的不规范行为，证券经营机构应当要求其整改。( )

When you travel in South America, you’d better pay attention to the following three kinds of dangerous South American animals.

Piranhas（水虎鱼）

Although only a small number of piranhas are considered to be dangerous to humans, the red-bellied piranha is definitely one of those. Evidence has shown that a large group of piranhas can absolutely eat a herd of large animals crossing the river, leaving only bones. This fish lives in the freshwater streams of South America, and they can smell the blood from far away and launch attacks swiftly. It is said that they are only dangerous to humans if the water volumes are less and lower.

Anacondas（水蟒）

This South American monster of a creature often appears in the films or your nightmares！They have weighed over 230 kilograms. It is often considered to be the biggest snake in the world. You certainly don’t want to get caught alone with this snake due to its method of attacking and killing its victim. It is indeed a remarkably different brand of snake type as it regularly coils（缠绕）around all over its target, increasing the pressure until eventually its victim dies. Its jaws are powered by large muscles that produce enough power for its over 100 sharp teeth to pass through the thick skin of an crocodile. They don’t have poison. Sometimes they prefer to camouflage themselves so they look like their surroundings and swiftly draw back when humans are near.

Golden Poisonous Frogs

The golden poison frog might be the most-deadly of the South American animal, which is protected by means of poison. This very small frog, less than 55 mm in length, packs enough punch（效力）to take down a pair of African bull elephants. This apparently harmless frog has always been known to have killed people who have touched it directly. It’s also been noted that chicken and dogs have died by contacting things on which a golden poison frog had wandered! In intense colors, they normally look attractive to their targets.

小题1:What can we learn about piranhas from the passage?

A．Piranhas are the most dangerous animals.

B．Piranhas like to live in the deep seabed.

C．Piranhas may attack human beings when the water level is low.

D．Piranhas only attack human beings when they cross the river in groups.小题2:How does an anaconda kill its victim according to the passage?

A．It often uses its poison to kill its victim.

B．It often uses its strength to kill its victim.

C．It kills its victim mainly using its powerful teeth.

D．It kills its victim with the help of other snakes.小题3:The underlined word “camouflage” in Paragraph 3 means “________”.

A．hide itself by appearing like the surroundings

B．terrify and capture the enemy by making much noise

C．move around to search for delicious food

D．give off harmful gas to kill the targets小题4:Chicken and dogs are mentioned in Paragraph 4 to show that ________.

A．no animals can survive the poison of the golden poison frog

B．they like to wander along the path of the golden poison frog

C．the golden poison frog likes eating them most

D．the poison of the golden poison frog is deadly

开式曲柄压力机和闭式曲轴压力机各有什么特点？

《最具有影响力的123次历史事件》一书中写道：“历史在关键时刻的走向，决定着几百年、甚至是上千年人类历史的命运。”让我们走进历史的天空，探究最具有影响力的历史真谛。

【政治历程篇】

序号	①	②	③	④
事件	美国独立战争	俄国农奴制改革	美国南北战争	明治维新
评点	民族解放的号角	俄国近代化的开端	维护了国家统一	日本走上崛起之路

（1）将上述历史事件进行分类（只填序号）（4分）

实行革命的方式：（               ）实行改革的方式：（               ）

（2）以上历史事件有何共同点？（2分）

【科技发展篇】

（3）图一、图二的发明和使用使人类分别进入了什么时代？（2分）

（4）让人类从陆地走向海洋、从地球飞向太空是哪两项科技发明？（2分）

【军事拓展篇】

（5）历史在关键时刻的走向决定着人类历史的命运，请你从中国历史军事领域中举出最具有影响力的历史事件一例，并说明理由。（2分）

检查牛的脉搏，通常在（）。

A、颌外动脉

B、尾动脉

C、股动脉

D、前腔静脉

E、颈动脉

在校应征入伍退役复学的学生，服役期间荣获三等功奖励的，复学后减免学费的比例是多少（）

A.0.3

B.0.4

C.0.5

D.0.6