A．onceB．twiceC．callsD．work
A. once
B. twice
C. calls
D. work
查看答案
Did Any one ecall when l was out ？
A. everyone
B. someone
C. nobody
D. anybody
These are the motives for doing it.（）
A. reason
B. excuses
C. answers
D. replies
what can be inferred from the passage about the route to long life？（）.
A. it remains to be studied
B. It has already been discovered
C. Eating more leads to long life
D. Eating less leads to long life
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