According to the passage, an Italian would leave his phone on in a meeting for which of the following reason？
A. He is afraid of missing a business opportunity.
B. His family members may call him in emergency.
C. He thinks it is rude to leave a call unanswered.
D. He needs to get posted about the latest change in the work schedule.
The author suggests that Japan leads the world in the mobile-phone culture in that
A. the Japanese are the earliest mobile phone users
B. the Japanese are the chattiest mobile phone users
C. the Japanese use mobile internet early on
D. Japan provides the best mobile phone services
He never felt that being disabled______him of all moral responsibility to himself and his
A. released
B. relieved
C. removed
D. relied
If the land area of the earth is about 55,000,000 square miles, the area that can be explored in space is probably______.
A. 55,000,000 square miles
B. 70,000,000 square miles
C. 13,720,000 square miles
D. 550,000,000 square miles
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