[单项选择]Great as Newton was, many of his ideas （） today and are being modified by the work of scientists of our time.
A. are to challenge
B. may be challenged
C. have been challenged
D. are challenging

[单项选择]Great as Newton was, many of his ideas today and are being modified by the work of scientists of our time.
A. are to challenge
B. may be challenged
C. have been challenged
D. are challenging

[单项选择]Great as Newton was, many of his ideas ______ today and are being modified by the work of scientists of our time.

[单项选择]Great as Russell was, many of his ideas ______ today and are being modified by the work of philosophers of our time.

[简答题]

Today many people who live in large metropolitan areas such as Paris and New York leave the city m summer. They go to the mountains or to the seashores to escape the city noise and heat. Over 2.000 years ago, many rich Romans spent their summers in the city of Pompeii. Pompeii was a beautiful city. It was located on the ocean, on the Bay of Naples. In the year 79 A. D., a young Roman boy who later became a very famous Roman historian was visiting his uncle in Pompeii. The boy’s name was Pliny. One day Pliny was looking at the sky. He saw a frightening sight. It was a very large dark cloud, this black cloud rose high into the Sky. Rock and ash flew through the air. What Pliny saw was the eruption—the explosion—of the volcano. The city of Pompeii was at the foot of Mt. Vesuvius.
When the volcano first erupted, many people were able to flee the city and to escape death. In fact, 18,000 people escaped the terrible disaster. Unfortunately, there was not enoug

[简答题]（翻译题）Today many telephone users regard international calls as routine and overseas service, thanks to undersea cables and communications satellites, has undergone extraordinary improvement.

[填空题]Today many people are paying more attention to (reduce) ______ stress in their lives.