单项选择题

The theory was attacked ten years ago when it was first______, but gradually it was accepted.

A．promoted
B．enhanced
C．advanced
D．conceived
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单项选择题
Please______ your remarks to the topic under discussion.
A．confess
B．confirm
C．confuse
D．confine
单项选择题
______preparations are now being made for the President's official visit to three foreign countries.
A．Elaborate
B．Graceful
C．Royal
D．Tedious
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