A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/149085267703232063b36419440b089d887a8b43f5119image35.png">或<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1490852677074a13bbfc3271842a49862bed2593d0988image36.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1490852677152801970e0acd24341a2e76ece7258c483image37.png">或<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14908526771860903bf677c0541d2a0f11f41a9562612image38.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14908526772422688bca100a047638bb44395e71eb566image39.png">或<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14908526772757584552fb895498ba78e28342a6a3492image40.png">
D、无解.
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