<img alt="" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMAAAAAjCAYAAADCDAUrAAAFNklEQVR4Ae2azU3sMBDHtwc64EAHVAAHKoAbNxoACkCcEeIOd4Q4IrhDARQAdyiAAvL0i/RfZgfHsbN57wXHlsx4xvPl8YzjZFk0tdUIzDgCixmvvS69RqCpBZCYBIvFoqn9ZwwSwzdZtlkVwMfHR7O9vd0m8ubmZgOe2kj+2sqLQPG7+vb21iY9iU/CPz8/N1dXV1nJz7bXAigv+dt9LXNZ36u6ublpbm9vm62treb19bUBv7y8/GZIGM0l+V9eXhoOjDm1op8AX19fzdHR0fK0Pzs7ax4fH5uDg4MlLWWz51AA7+/vDf309DQrNinxmzJP0QXAlWd3d3ftDZ1DAShJn56eNBwEiTnvVxsbG+0Td5CSfyhUfAFw9+fqs06bSwFwBdrb21s7XsR7f3+/4Qk89VYLIGGH5lIAhOLh4aHtCWHpZLm4uGjov6EVXQCcRHr5HboZPvlJEGj0nZ2d5SmnRz90//gnGbyMaEC9q1h9Of6O4dP9/X178t/d3S3XJB/6fNWXNtZ4fX3dXjtPTk7aNY+xPvnxN2DxBUAykiBDG5uqRkHpc6oSHt0kMMkrO4eHh+09GB66fQ/hmqGrgfTxWVY02UqF0iFb3L/X8anLrux4X7FFjPm4QOOLG+undcm0kxP58727E3FoTDfYgNwC0EktP2wBcJrRfcOOfdJ4nIRAj5cl6bkrw++bikr+WKgEQ2Zsn7wfwkO+4jcHgv10ij86CEIy0jcVWAvA7ISSXZApO2ZzbfJJVKegEtkXAHx6YthfoJXkvjCkNwWO7VOXzZCv2La+Ewc9IdETkunS/7/ovQVgE+BvO+lteTzXPomY+wSQDdkWhO4TG5w7r5JbxUEi6D7PHPdqtePj4+WJzw9yyMPLN/jPz0+xJcOxfeoyHPKV9eI/ic4PjOfn5ysHREimS3+IbmNv57volid13FsAKMoxCK/4NfawyznJad7joqfCdQsgZJ/k1nrsaS5bzFm6ikMyJA33ZAoTGeY5NXN/nbYxGMMnq8+OY75il3XgP2vhacAPj6xljPUpZoLyS7iFsTnLZ8fIrBSAnUwdt0rMf0rKEdEt3kUbQvd6QzibYu/mIZ4YjRjU9n8ioNgLyguL27HmQzDGt7LDMcYUxV7e4+gI0YbQQ/54mk5XCoEG1NjzhvAuX0O8lTZeBHzchQtaSyGanWcc41kpAC+Yi3tDHu9yJsRnbffNW147tgXAf4Habvnq+HdEYGgexOSCBYBAX7chC/EyHzLsaR63eu04lc/K8HKmz4x6+aQo+Ke42qYfAfa8r6esIpY7wQLwSmMKLK/n8zi8lqYxMNZlQ/zC+yAFoP8GJelJ/loAfVGb7nzf/sdyqHMuZbl9hqVDRjwuuqDmPQzZCdG8nMdJcj4tkvR8mqMQ+FyndwDGtU03AsqTHBhbTSyHgk8AL+DxkDE5y1wKf5cOTx+ii4SnAPQpDp38Wsn3eLr95dLbq/j0I5CbEzH+5AJAie0+TJrz9Bw85GiIlqOz8v7OCCifUmDfCmM5lFwAMSMyIGh5Lc2OLQ/jrrkuupev+HwikJsTMf5RCkChDxnyNI8jG6LFdGquwvIjEMqNEC0WiRj/jwIQsyCK7TjHUJecpdtxSHfffEim0sqKgM8Bj/etNsa/UgCeEbyvW+NW3o4tD2PNCfp58cTmQzKVVnYEyAf1lJWKN5ZHKwWQorTy1AiUFIFaACXtZl1LdgRqAWSHrAqUFIFaACXtZl1LdgRqAWSHrAqUFIFaACXtZl1LdgRqAWSHrAqUFIE/LWOEqrjcMFgAAAAASUVORK5CYII=">(单选题)
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.<img alt="" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAdCAYAAACjbey/AAAAzElEQVRIDd1UUQ3EIAzFCxbwgAQ0YAEHOMABQjCAARzgoZdHso9LSy837mO5Joysa1/f6yiGDs0c5tM/ArTWyDlHxhiy1lLvXW0T60HOmUopKymEQHjXjAFcwWMMAgB2zUQAVIUEABxJiDESlmaMASp67xcDNPNrBlo16RtjIAVpvgcC4PdJayfjgRJ2VHf+30uYc67jezTOKaXF+GicgQCgW+OMZNxMn5IRJzYRNxJ6gXXJWZqEBwOotb6dxNtXmlBMdDEGYpTiPAZ4AQck35z2B7GdAAAAAElFTkSuQmCC">
.<img alt="" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA0AAAAcCAYAAAC6YTVCAAAAvElEQVQ4EdWTYQ3EIAyF6wULeEACGpCCA4ygAAMYwAEeenlL+qNcdzeWyyVrQki7fn2FFeIbRjcY/h1Ua+UQwmkTb0pzTk4p7UEAAF5WKqUwWoMBgm+Zag+JRKTWV0gSeu8HmHOWkNqVkvrywXkStN6c+OvxnnSmtfczX52ptcbe+2ManHOMybBMQRgbGdIYI2+N0RiDAWG3TCkhAdXxfwBtt4fHiGWZUkJleVO4kEtKVlUrppSsBCv2P+gFwpNNY15mF4UAAAAASUVORK5CYII=">
.<img alt="" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAcCAYAAAB/E6/TAAAA20lEQVRIDe2VYQ3EIAyF8YIFPCABDZOCAxygAAUYwMAczEMvbwk/uFEuuQ5+0YQsdKMf76UDRYtCLeLQK6CUEllrh3sWg67rouM45oMAAWyqohACwTYEQJhzIbIOxZVSzZgCqkVLKTfMe19Tj6dI0aPaILFBA3PGrxrrYoxNB+Wch6u/O67Oe4saUO+Dt3Ib9LeTIuvQLMaYu4G01oQTggsRCEdOPUidczT9CDrPkwDCkwuRIhSFCvw/AC2xDhcgBhciRVBQ7yQ0xTRF3O57eZGiXkEut0GcMz/zH8lB7UuN3XfUAAAAAElFTkSuQmCC">
出自:2024年国家开放大学答案