参考答案: AB

详细解析:

项目空间开启数据保护的可以访问的例外情况是1设置例外机制2设置互信可参考https://help.aliyun.com/document_detail/34605.html?spm=5176.21213303.J_6028563670.18.39bc3edabbC076&scm=20140722.S_help%40%40%E6%96%87%E6%A1%A3%40%4034605.S_0%2Bos0.ID_34605-RL_%E5%BC%80%E5%90%AF%E9%A1%B9%E7%9B%AE%E7%A9%BA%E9%97%B4%E6%95%B0%E6%8D%AE%E4%BF%9D%E6%8A%A4%20%E5%A6%82%E4%BD%95%E6%95%B0%E6%8D%AE%E6%B5%81%E5%87%BA-OR_helpmain-V_2-P0_2