在实际的生产劳动中,周围环境的温度直接影响到劳动者的心情、工作效率,甚至会导致事故的发生。
参考答案:对
— Do you know where David is? I couldn't find him anywhere.
— Well. He _____ have gone far-he told me he would come back in 5 minutes. [ ]
A. shouldn't
B. mustn't
C. can't
D. wouldn't
关于Authorware的说法,正确的是()。
A、Authorware是基于时间线的创作工具
B、Authorware是基于描述语言或描述符号的创作工具
C、Authorware是基于图标的创作工具
D、主要用于制作网页