下列各图所示意的地质构造或地貌景观中，主要由于内力作用形成的是
A、①④
B、②③
C、①③
D、②④
答案：A
________ the Chinese men’s football team with that of North Korea, we can see what the former lacks is spirit and determination.
A．Compared
B．Comparing
C．Being compared
D．To compare
附件安装时的接地，在（）及以上电压等级的运行区域作业，应采取防静电感应措施。
A.110kV
B.220kV
C.330kV
D.500kV
