【单选题】依次填入下列各句括号处的词语,最恰当的一组是:() ①七星瓢虫是蚜虫的天敌,能防止蚜虫()农作物。 ②急剧的时代()引起人们的心理失衡,是当今几乎每个中国人都会体验到的生存现实。 ③冯老师的“码根码”汉字输入软件已进入电脑市场,他的生活()也有所改善。
【判断题】Langue is relatively stable and systematic while parole is subject to personal and situational constraints.
【判断题】Langue is subject to personal and situational constraint while parole is relatively stable and systematic.
【判断题】Langue is relatively stable and sysyematic while parole is subject to personal and situational constraints.
【判断题】Langue is relatively stable and systematic while parole is subject to personal and situational constraints.