单选题
The North American states agreed to sign the
agreement
of economical and military union in Ottawa.
A、
convention
B、
conviction
C、
contradiction
D、
confrontation
【正确答案】
A
【答案解析】
agreement协议；convention大会，惯例，协定；conviction确信，定罪；contradiction矛盾；confrontation对抗。
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