Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/d0711f44e7db1624d3c8184a7a0d55ab.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.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_94生活常识网有道词典
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。