Warning: file_put_contents(/home/www/wwwroot/ndsq.cn/cache/0cf04fd11b0e48f414730abad877c0ea.txt): failed to open stream: No space left on device in /home/www/wwwroot/ndsq.cn/index.php on line 55 blue litmus paper例句_blue litmus paper英汉例句_blue litmus paper双解例句_開心英語字典_柠咚词
Strong bases that turn litmus paper blue, they react with acids to yield salts, are caustic, and in concentrated form corrode tissues. 它們與酸作用成爲中性鹽； 它們是苛性的，其濃縮物可腐蝕有機組織。