题目内容

建筑工程上使用的防水卷材，其性能主要有()。

A. 弯折强度、延伸率、在温度变化下的稳定性、抗老化等性
B. 拉伸强度、延伸率、在温度变化下的软化性、抗老化等性
C. 拉伸强度、延伸率、在温度变化下的稳定性、抗老化等性
D. 断裂强度、拉伸长度、在温度变化下的稳定性、抗老化等性

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Paragraph 3 __________. 查看材料

A. Effects of a stroke
B. Annual cost of stroke in the US
C. Definition and description of a stroke
D. Breakthroughs in treatment
E. Risk factors of stroke
F. Warnin~ signs of a stroke

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回答题：
New Foods and the New World
In the last 500 years, nothing about people--not their clothes, ideas, or languages—has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree by South American Indians. The Spanish introduced it to the rest of the world during the 1500&39;s. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today.
The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine" of 1845--1846, and thou-sands more Were forced to emigrate to America.
There are many other that that have traveled from South America to the Old World.. But some others went in the opposite direction. Brazil is now the world&39;s largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia. It was first made into a drink by Arabs during the 1400&39;s.
According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one-third of the world&39;s population now starts the day with.
According to the passage， which of the following has changed the most in the last 500 years？查看材料

A. Food
B. Chocolate
C. Potato
D. Coffee

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《就业失业登记证》中的记载信息在()有效。

A. 全国范围
B. 流动人口所在地
C. 流动人口户籍地
D. 用人单位注册地

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（50）__________ 查看材料

A. So far， we have not known exactty yet whether mouth-to-mouth breathing is really useless in CPR.
B. Only ten percent of the victims treated with traditional CPR survived with good brain ability.
CPR keeps blood and oxygen flowing to the heart and brain.
D. His studies show that many people do not want to perform. mouth-to-mouth breathing on a stranger for fear of getting a disease.
E. It said people should increase the number of chest presses from fifteen to thirty for every two breaths given.
F. No mouth-to-mouth rescue breaths were given to them.

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