题目1单选题
微分方程<img src="https://tihai-oss-cloud.itihey.com/img/dafd20bff543781fc8c8fb1dea589280.png">的通解为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/899dc4883a52523e4033a18490de87b7.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/18afaab7bc67784debabd1cb490f9ba5.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/012efd67381d9bb78460bf00c9151ece.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/f2038bb6b6fe00f1dd584fd90ec5bd92.png">