影响VRLA蓄电池容量的重要因素有（）。
A.温度
B.浮充电压
C.湿度
D.补充电压
参考答案：A, B
—Americans spend more on health care than most other people.
—You're right. But a new study shows that life in the United States is falling. [ ]
A. development
B. position
C. experience
D. expectancy
城市污水处理厂，乎流式沉砂池的设计最大流速应为（）m／s。
A.0.3
B.0.6
C.10
D.1.5
