单项选择题

Which of the following is time of the recent discovery

A．The planet is not as protective as Jupiter.
B．The planet is close to star 55 Cancri.
C．The planet proves to be a gas planet.
D．The planet is as large as Jupiter.

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单项选择题

How many planets orbiting other stars have the two scientists discovered so far

A．100.
B．69.
C．66.
D．65.

单项选择题

The author would probably agree that ______.

A．it's very hard to plant many kinds of flowers in a garden
B．it's good for people from other countries to learn English
C．more and more people like to plant roses in their gardens
D．English is easier to learn than other languages