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【单选题】
关于人体造血干细胞的叙述，错误的是A.
造血干细胞与成熟红细胞中的酶存在差异
B.
造血干细胞分化为成熟红细胞的过程是可逆的
C.
健康成年人的造血干细胞主要存在骨髓中
D.
造血干细胞分化形成的红细胞和白细胞寿命不同
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【单选题】Which of the following is Not true about Wordsworth?
A.
Wordsworth is one of the most influential English Romantic poets.
B.
Wordsworth, as a young man, developed a love of nature, a theme reflected in many of his poems.
C.
Wordsworth was an enthusiast for the ideals of the French Revolution throughout his life.
D.
Wordsworth became poet Laureate in 1843.
【简答题】In 1843 his life was immortalized by Nelson's Column, in , London.
【简答题】对COX-2有一定的选择性抑制作用的药物是
【简答题】电梯里比较常见的绳槽形状有
【单选题】In GMDSS, shore-to-ship distress alert is from( ) to ( )
A.
ship station/RCC
B.
ship station/ship station
C.
RCC/ship station
D.
ship station/shore station
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