A.短波2mm/20mB.長(zhǎng)波高低和軌向5mm/300mC.短波3mm/20mD.長(zhǎng)波高低和軌向10mm/300m
A.一次布網(wǎng)B.二次布網(wǎng)C.分時(shí)觀測(cè)D.同時(shí)觀測(cè)
A.CP0B.CPⅠ C.CPⅡD.CPⅢ