企业进行市场调查的原则包括（）。A.客观性原则 B.针对性原则 C.时效性原则 D.

阅读理解。

       This is a story about a famous American woman. Her name is Helen Keller. When she was only nineteen

months old, she got an illness which made her blind and deaf. She couldn't see or hear anything. So she couldn't

learn to speak. When she was six, a young teacher came and taught her to read and write. Her name was Anne

Sullivan. Later, when she was ten, Miss Sullivan took her to another teacher, Sarah Fuller, who taught her to

speak. Helen put her fingers on Miss Fuller's face and into her mouth. In this way, she learned to speak. She

went to school and became famous, because she was one of the first blind and deaf person that learned to speak.

She began to write books to help the deaf to speak. She also wrote books to help the blind in many parts of the

world. Her hard work and her courage make people in all countries love her. She is one of the few women

whom everyone knows. 

1. How old was Helen Keller when she became blind and deaf? [ ]

A. She was one year and seven months old.

B. She was ten.

C. She was six.

D. She was nine months old.

2. What did Miss Fuller teach her to do? [ ]

A. To walk.

B. To draw a picture.

C. To speak.

D. To play games.

3. What did she do after she could speak? [ ]

A. She made a lot of money.

B. She wrote books and helped the blind in many countries.

C. She tried hard to be famous.

D. She returned to her hometown.

在对产品实施监视和测量，在策划的安排已圆满完成之前，向顾客提供产品或交付服务应（）。

A.不需批准

B.适用时，经顾客批准

C.得到有关授权人员批准

D.必须得到顾客批准

评审监督人员的原则是（）。

A.独立

B.客观

C.公正

D.廉洁

试述体外循环术后动脉测压时的注意事项。

旅游团在饭店集合准备前往景点游览时，地陪首先要做的是（）。

A.宣布当天的活动日程

B.介绍新闻和热门话题

C.沿途风光讲解

D.提醒旅游者带好游览用品