In China it is relatively usual to ask people their age, but in the West this question is generally regarded as impolite. This is particularly true 【B1】 women, and even more 【B2】 if the inquirer is a man. However, it is very 【B3】 to ask children their age, and some adults may not mind 【B4】 either. In fact, some elderly people are quite happy to 【B5】 their age, especially if they feel they look young 【B6】 their age. Nevertheless, it is not very wise to ask a(n) 【B7】 question like " How old are you". If elderly people want to talk about—their age, and perhaps receive a compliment on how young they look, they may easily 【B8】 the topic themselves, and ask the other person to 【B9】 how old they are. 【B10】 such a question, it is quite acceptable to discuss age 【B11】 . They normally expect to be complimented on their youthfulness, though rather than 【B12】 that they look very old! 【B13】 Westerners do not usually ask people directly how old they are, this does not 【B14】 tha
A. reveal
B. reflect
C. release
D. remark
Richard Satava, program manager for advanced medical technologies, has been a driving force bringing virtual reality to medicine, where computers create a "virtual" or simulated environment for surgeons and other medical practitioners (从业者).
"With virtual reality we’ll be able to put a surgeon in every trench," said Satava. He envisaged a time when soldiers who are wounded fighting overseas are put in mobile surgical units equipped with computers.
The computers would transmit images of the soldiers to surgeons back in the U. S. The surgeons would look at the soldier through virtual reality helmets (头盔) that contain a small screen displaying the image of the wound. The doctors would guide robotic instruments in the battlefield mobile surgical unit that operate on the soldier.
Although Satava’s vision may be years away from standard operating procedure, scientists are progressing toward virtual reality surgery. Engineers at an
A. cause less pain on the wounded
B. allow the patient to recover more quickly
C. will make human surgeons’ work less tedious
D. are done by robot surgeons with greater precision
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