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【单选题】
Winning the party's nomination for president signaled the ______ of the senator's political career he had reached his ultimate goal.A.
collection
B.
aberration
C.
descent
D.
pinnacle
E.
metamorphosis
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反馈参考答案：
举一反三
【单选题】关于肺内导气部结构变化规律的描述,错误的是
A.
上皮内杯状细胞逐渐减少最后消失
B.
纤毛消失
C.
腺体逐渐减少最后消失
D.
软骨逐渐减少最后消失
E.
平滑肌渐明显,形成环形层
【简答题】If your mother wants to tell you something, she uses words. Birds cannot talk as we do. But some birds can make sounds to warn their young of er. The jackdaw is a kind of blackbirds that lives in ...
【单选题】Mary, ____________, but I can’t take part in your bir thday party tomorrow.
A.
I’m sorry.
B.
Thank you
【简答题】“姑苏城外寒山寺，夜半钟声到客船”，这是唐诗中的名句．钟声是由于大钟受到撞击发生 产生的，船上的客人听到钟声是通过 传播的，判断出是钟声是根据声音的 ．
【简答题】以下标志所代表的含义是
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