单项选择题

What conclusion can we get from the passage

A．Engineering a perfect human is not feasible for the time being.
B．It's impossible for scientists to engineer a perfect tomato.
C．Many diseases will never be conquered by human beings.
D．Doctors will be able to cure all sorts of flaws in DNA in the long run.

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单项选择题

A．He doesn’t have time living on campus.B．He wants to change his home.C．He wanted more free time so he moved on campus.D．He prefers the more interesting life-style on campus.

A．He doesn’t have time living on campus.
B．He wants to change his home.
C．He wanted more free time so he moved on campus.
D．He prefers the more interesting life-style on campus.

单项选择题

A．60%; 30%.B．16%; 13%.C．60%; 13%.D．16%; 30%.

A．60%; 30%.
B．16%; 13%.
C．60%; 13%.
D．16%; 30%.