A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1540880150388b5e8e299741c4db88ffc104db6e8fc56image1.png">轴,向东为正
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1540880150486b1f0fe6b0c814fd8a761409563f53445image2.png">轴,向东为正
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1540880150594013b1dd655ef4d599109cb83570991bfimage3.png">轴,向北为正
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15408801506861201632f42774d6298434730dbf750f0image2.png">轴,向北为正