The center is usedfor swimming, diving, synchronized swimming and water-polo games only inthe period of the Olympic Games.
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Which is NOT employed in the creation of the swimming pools at the swimming center?
A. High-tech facilities
B. Optical devices
C. Multiple-angle, three-dimensional screening systems
D. Wind energy
Water Cube is inthe Beijing Olympic Park.
A. 对
B. 错
The water of the swimming pools is recycled.
A. 对
B. 错
局麻药产生局麻作用的机制是
A. 阻滞钠离子内流
B. 阻滞钠离子外流
C. 阻滞钾离子内流
D. 阻滞钾离子外流
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