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硝酸盐在微生物中功能有哪些?
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举一反三
【单选题】According to the first paragraph, the index of DJIA
A.
rose above 9,000 for the first time in history.
B.
has increased 38% since October 2007.
C.
indicates the end of the harsh economic environment.
D.
is still 54% lower than the highest point in history.
【简答题】Last year French drivers killed【C1】______than 5, 000 people on the roads for the first time in decades. Credit goes largely【C2】______the 1, 000 automated radar cameras planted on the nations highways ...
【简答题】情景对话. A: 1. ______! I'm John. B: Hello, John, I'm Tom. 2. ______ to meet you. A: Nice to 3. ______you. too.
【单选题】05-3-1:古罗马的神庙继承了希腊的宗教和型制,以()为主,建在城中。 而下图的()主要采用了穹顶覆盖的集中式形制,是单一空间、集中式构图的建筑物的代表,是罗马穹顶技术的最高代表。
A.
矩形前廊式;罗马万神庙
B.
围廊式;圣索菲亚大教堂
C.
圆形;圣索菲亚大教堂
D.
圆形;罗马万神庙
【单选题】古罗马的神庙继承了希腊的宗教和型制,以()为主,建在城中。 而下图的()主要采用了穹顶覆盖的集中式形制,是单一空间、集中式构图的建筑物的代表,是罗马穹顶技术的最高代表。
A.
矩形前廊式;罗马万神庙
B.
围廊式;圣索菲亚大教堂
C.
圆形;圣索菲亚大教堂
D.
圆形;罗马万神庙
【单选题】'The second ＄100,000 never tastes as good as the first', because ______.
A.
it's not so fresh as the first ＄100,000
B.
it is not so important as the first ＄100,000
C.
profit brought by it is less than that from the first ＄100,000
D.
happiness brought by it is less than that from the first ＄100,000
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