单项选择题

Why didn't Einstein give the lecture

A．Because he was too tired.
B．Because people there didn't know Einstein and the driver was familiar with the lecture.
C．Because Einstein had other things to do.

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热门试题

单项选择题

Elephants can be used to do some heavy jobs because______.

A．they can eat a lot
B．they are very heavy, too
C．they are very strong

单项选择题

Dogs can be used to guard a house for his host because______.

A．they are good at running
B．they are very kind and friendly to people
C．they are brave enough to get the strangers(陌生人) and thieves away from the house