Warning: Declaration of block_exacomp\common\SimpleXMLElement::addChild(block_exacomp\common\mixed $name, ?string $value = NULL, ?string $namespace = NULL): ?SimpleXMLElement should be compatible with SimpleXMLElement::addChild($name, $value = NULL, $ns = NULL) in /home/www/moodle/moodle/blocks/exacomp/lib/common.php on line 140 Резюме 22231.4.002.0061.04经典文献阅读Ⅲ (H)