搜题请搜索小程序“爱下问搜题”
问题 填空题

原料血浆可能含有经血液传播疾病的病原体（如HIV、HBV、HCV、），为确保产品的安全性，必须确保（），必须对生产过程进行严格控制，特别是病毒去除和/或灭活工序，必须对（）。

答案

参考答案：原料血浆的质量和来源的合法性，原辅料及产品进行严格的质量控制

单项选择题

维持担保比例超过( )时，客户可以提取保证金可用余额中的现金或充抵保证金的有价证券。

A．100%

B．150%

C．300%

D．500%
查看答案
单项选择题

(A)

Around the world more people are taking part in dangerous sports and activities. Now, there are people who look for an immediate excitement from a risky activity which may only last a few minutes or even seconds.

I would consider bungee jumping (蹦极) to be a good example of such an activity. You jump from a high place 200 meters above the ground with an elastic (弹性的) rope tied to your feet. You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground. It is said that about 2 million people around the world have now tried bungee jumping. Other activities which most people would say are as risky as bungee jumping include jumping from tall buildings and diving into the sea from the top of high cliffs.

Why do people take part in such activities as these Some psychologists suggest that it is because life in modem societies has become safe and boring. Not very 10ng ago, people’s lives were constantly in danger. They had to go out and hunt for food, diseases could not easily be cured, and life was a continuous battle for survival.

Nowadays, according to many people, life offers little excitement. They live and work in quite safe conditions: they buy food in shops, and there are doctors and hospitals to look after them if they become ill. The answer for some of these people is to look for danger in activities such as bungee jumping.

Of the risky activities, bungee jumping （）。

A. offers an immediate excitement

B. is a fashion

C. makes one relaxed

D. makes one brave
查看答案