单项选择题

In the last century and a half, scientific development has been breathtaking, but the understanding of this progress has not ______ changed.

A．incidentally
B．dramatically
C．rigorously
D．temporarily
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单项选择题
Though Americans do not currently ______ abortions directly, costs are carried by other Americans through higher insurance premiums.
A．implement
B．terminate
C．prohibit
D．subsidize
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