单项选择题

The theory of the origin of the universe is just ______ and lacks proof.

A．spontaneous
B．hypothetical
C．intuitive
D．empirical
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单项选择题
Military orders are ______ and cannot be disobeyed.
A．defective
B．conservative
C．alternative
D．imperative
单项选择题
Dried vegetables are easy to use if you remember to ______ them overnight.
A．plunge
B．soak
C．put
D．immerse
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