Questions 17-20 are based on the following passage. You now have 20 seconds to read the questions 17-20. How do people make decisions about risky situations
A. By judging to what extent they can eliminate the risks.
By estimating the possible loss of lives and property.
C. By estimating the frequency of volcanic eruptions.
D. By judging the possible risks against the likely benefits.
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______年______月______日,第一届现代奥运会在希腊雅典开幕。P61
茅盾原名______字______祖籍______。 P67
现代奥运会的创始人是______国人______。决定每______年举办一届奥运会,______年在雅典举办第一届现代奥运会,任命希腊诗人______为国际奥委会第一任主席,______任秘书长。P61