锅炉辅机油箱安装时，油管组装后应按设计规定进行（）试验，无渗漏现象。
A、承压
B、严密性
C、强度
参考答案：B
湿热壅滞型腹痛用下列何方治疗（）
A.三仁汤
B.大承气汤
C.大柴胡汤
D.龙胆泻肝汤
E.茵陈蒿汤
The photoperiodic response of algae actually depends on the duration of darkness, but not on the response of light.
A．is not on light
B．but is not on the light
C．and not on light
D．the light is not on
