Every year， NOAA predicts the sardine population and sets fishing limits according toa system， which Oceana wants to change， believing it‘s too loose.
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核酸是()。
A. 细胞内的一种生物大分子
B. 细胞内的一种生物小分子
C. 仅存在于细胞核内
D. 仅存在于细胞质内
E. 有双螺旋结构
Passage Two
Questions are based on the passage you have just heard．
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A. They have the same kind of culture．
B. They are wild in different ways．
C. They have most traveled areas．
D. They have cutting edge technology．
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A. The color of the outfit is perfect．
B. The trousers look wonderful．
C. The outfit goes well with the trousers．
D. The outfit is better than the trousers．
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