单项选择题

The selection says that spiders have been discovered ______.

A．five miles above earth
B．more than 2000 feet underground
C．everywhere that man has reached
D．both A and B
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单项选择题
What is the main idea of this passage
A．How Debbie, a divorcee, raises her two children.
B．How Debbie manages to do her work well.
C．How Debbie feels both as a responsible mother and a devoted worker.
D．How Debbie tries to be a single mother.
单项选择题
We learn from the second paragraph that ______.
A．the children learn how to make their beds
B．the Debbie' s leave home without making the beds
C．one of the children watches TV while eating breakfast
D．the children fail to do what their mother wants them to do
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