题目1单选题
在图1中<img src="https://tihai-oss-cloud.itihey.com/img/9fb634cec0783fe2efd97a96724132e9.png">,<img src="https://tihai-oss-cloud.itihey.com/img/4777a4f77193ae77344773595f979b76.png">,<img src="https://tihai-oss-cloud.itihey.com/img/1df501079f8a9609f0d84bea46c6bb7f.png">, <img src="https://tihai-oss-cloud.itihey.com/img/dbff93fdbee62a70f9c98a85485cbd3e.png">可忽略,若使<img src="https://tihai-oss-cloud.itihey.com/img/328e91e3ca21f4a656574441c28ed737.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/da4cc2d64b545e8e6018944a2e46bedc.png">应为( ) <img src="https://tihai-oss-cloud.itihey.com/img/e4443f8d5a5b588052f226a1cdae4fcc.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/2afa4e91fd067720ec01812c46786c0d.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/d6c15a920feb8ff190637c66e9d8cd69.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/581c868556d817ca88b294e20c514fc8.png">