在声环境预测过程中遇到的声源往往是复杂的,需根据()形式简化处理。
A. 声源的地理位置
B. 声源的性质
C. 声源的空间分布形式
D. 设备的型号、种类
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We can infer from the last paragraph that in the dining-car______.
A. the waiters were snobbish
B. the couple felt ill at ease
C. the service was satisfactory
D. the couple enjoyed their dinner
在证券自营买卖交易中,证券公司作为投资者要完全承担由此带来的风险和损失。 ()
A. 正确
B. 错误
We learn from the description of the Gibraltarian home that it is______.
A. modern
B. luxurious
C. stark
D. simple
听力原文: For many years, T-shirts were short sleeved undershirts only for men and boys. T-shirts used to 'be of one color—white. And since they were worn under shirts, they were generally not seen.
Today things have changed a lot. T-shirts has become colorful and fashionable. It can be seen almost everywhere and on everyone Women and children wear T-shirts as well as teenagers, university students and men from all walks of life. T-shirts are worn on the playground, on the beach or in town. They can also be worn for work. Because the T-shirts are relatively inexpensive, smart, comfortable and convenient to wear, they have become one of the newest ideas in fashion over the world.
Although T-shirts are now available in a wide variety of bright materials and styles, the most popular kind is the traditional cotton T-shirts with a slogan or a picture printed on the front. A T-shirt may bear a single word, a popular phrase, pictures of sportsmen, or an advertisement. As T-shirts are becoming more and more popular, new designs are coming up all the time.
When do people usually wear T-shirts?
A. When they take part in sports.
B. When they watch a film.
C. When they go shopping.
D. When they read a book.