单项选择题

According to the passage, which one is NOT true()

A．Newton figured out the orbit of the comet.
B．Halley figured out the orbit of the comet first.
C．Newton gave Halley some help.
D．Halley died before 1758.

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单项选择题

The one who first suggested the correct cause of the baby's illness was()

A．a doctor in Deleville
B．a famous doctor
C．Agatha Christie
D．an ordinary nurse

单项选择题

As far as we can tell from the story, Agatha Christie ()

A．had never met this baby
B．had spent a long time studying the baby' s illness
C．visited the baby both in Deleville and London
D．gave the nurse some advice on, the telephone