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单项选择题

珠光体的含碳量()

A.0.77%
B.2.11%
C.6.69%
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单项选择题羟苯乙醇胺对脑的毒性作用是()

A.导致脑细胞形态变化
B.干扰脑的能量代谢
C.取代正常神经递质功能
D.与脑内GABA受体结合
E.对神经突触膜有直接毒性作用

单项选择题Which of the following is NOT true about Pit No.3? A. It lies to the west of Pit No.1 B. It looks like in a shape C. It has the least warriors among the four pits D. It was not finished probably