—How do you find the health club?

—I        . Everyone is saying its management is going from bad to worse

A．ought to join

B．should have joined

C．would rather not have joined

D．would like to have joined

钻孔止水的目的，主要是为了取得分层水位、水量、水温、水质、渗透系数等资料，防止（），影响地下水资源的正确评价和合理利用。