单项选择题

The frequent ______ from cold to warm weather this spring have caused much illness.

A．transmissions
B．transactions
C．transformations
D．transitions
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单项选择题
Like other religious groups, the Christian church's strong emphasis on holiness is essential to salvation.
A．deemed
B．doomed
C．destined
D．depicted
单项选择题
We do not mean to be disrespectful when we refuse to follow the advice of our leader.
A．venerable
B．respectful
C．famous
D．gracious
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