河间地块潜水分水岭处，位置深处的测压点的地下水位高于位置浅处的水位，河流附近则相反。
A、正确
B、错误

Which of the following description of alternative touri...

单项选择题Which of the following description of alternative tourism is NOT correct?
A、Alternative tourism is synonymous with replace tourism
B、Mass tourism is the opposite to alternative tourism
C、Alternative tourism is alternative to large scale tourism
D、Alternative may have a small-scale impact on a destination compared with mass tourism

接地装置一般由接地体和接地线组成。

未知题型接地装置一般由接地体和接地线组成。

一般要求影像设备的满负荷工作容量为电源容量的20-40%。

未知题型一般要求影像设备的满负荷工作容量为电源容量的20-40%。