题目

词汇运用：根据句意和汉语提示，在空格中填入正确的单词。(每空填一词) 1. ________(呼吸) deeply if you are nervous. 2. There are several pairs of shoes ________(在……下) the bed. 3. Sichuan food is very ________(不同的) from Guangdong food. 4. Mr. Green's car was made in ________(德国) in the 1980s. 5. The telephone rang and he answered it ________(立即)． 6. She wants to ________(邀请) some friends to her new house. 7. It's cool and the ________ (叶子) fall from the trees in autumn. 下列说法正确的是 [　　] A． 铜、石墨均能导电，所以它们均是电解质 B． NH3、CO2的水溶液均能导电，所以NH3、CO2均是电解质 C． 液态HCl、固体NaCl均不能导电，所以HCl、NaCl均是非电解质 D． 蔗糖、酒精在水溶液或熔融状态下均不能导电，所以它们均是非电解质