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【多选题】
导致贫血的主要因素有( )。A.
缺O2
B.
缺乏维生素B12
C.
缺乏维生素D
D.
骨髓功能障碍
E.
缺乏蛋白质、Fe2+
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反馈参考答案：
举一反三
【单选题】In every myth, ______.
A.
there is a connection with some natural event
B.
there exists some religious teaching
C.
there are angry gods and goddesses
D.
there is not necessarily an attempt to explain an event in nature
【简答题】曹植在建安时期文人中文学成就突出,故钟嵘《诗品序》称其为“( )”。
【判断题】The precedence relationships between all pairs of symbols. The following rules are used: L ± R: if there exists a production U →α LR β LR: if there exists a production U→αVWβ , and V LAST+ L and W FIR...
A.
正确
B.
错误
【单选题】There is a relation R: A B 1 2 3 4 Which of the following is a suitable representation of a tuple of R?
A.
(1,2)
B.
{1,2}
C.
1,2
【简答题】阅读理解。 Amada has a new house. On the first floor there is a kitchen, a living room and a dining room. On the second floor there are two bedrooms, a study and a bathroom. There is a sofa, a tea table an...
【简答题】曹植是建安时期最盛名的作家,《诗品》称为“_______”。
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