单项选择题

In creating viruses, a person has to______.

A．watch things blow up
B．write the code and test it
C．write silly messages or destructive messages
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单项选择题
A．Ten days.B．Eight days.C．Fifteen days.
A．Ten days.
B．Eight days.
C．Fifteen days.
单项选择题
We can infer that______.
A．after this space flight, Spaceship One will get the $10m Ansari X Prize
B．it is dangenms for a spaceship to reenter the earth atmosphere
C．Terence will be very safe on the flight
D．Spaceship One is just an ordinary plane
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