62. Paul Davies points out that . (A)humans need only a one- way ticket to Mars (B)two-way trips to mars will be made safe soon (C)It is easy to reduce the danger and cost of flights to Mars (D)It is cheap to build an everlasting human settlement on Mars

73. Why do more choices of goods give rise to anxiety? (A)Professionals find it hard to decide on s suitable product (B)People are likely to find themselves overcome by business persussion. (C)Shoppers may find themselves lost in the broad range of items. (D)Companies and advertisers are often misleading about the range of choice.

62. Paul Davies points out that .
(A)humans need only a one- way ticket to Mars
(B)two-way trips to mars will be made safe soon
(C)It is easy to reduce the danger and cost of flights to Mars
(D)It is cheap to build an everlasting human settlement on Mars

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