单项选择题

Without proper lessons, you could______a lot of bad habits when playing the piano.

A．keep up
B．pick up
C．draw up
D．catch up
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单项选择题
The fact that the golden eagle usually builds its nest on some high cliffs______it almost impossible to obtain the eggs or the young birds.
A．renders
B．reckons
C．regards
D．relates
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