It can be inferred from the passage that people believe tall and thin plants______.
A.need more water
B.need a deep container
C.is over-watered
D.need more light
第8题
眼电图产生于:
A.视网膜色素上皮细胞:
B.视网膜杆细胞:
C.视网膜锥细胞:
D.视网膜外界膜:
E.视网膜内界膜:
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