过高的再生液浓度使交换基团受到（），从而使再生效果反而下降。
参考答案：压缩
首先考虑的诊断是
A．膀胱癌
B．膀胱肉瘤
C．膀胱憩室
D．膀胱滤泡
E．输尿管口囊肿
Attempts have been made for nearly three decades to increase the amount of precipitation from clouds by seeding them with salt or silver iodide.
A．Devices
B．Hypotheses
C．Efforts
D．Suggestions
