The class is__ because of the storm()
A. held
B. canceled
C. attended
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“Nice to meet you.” or “ It’s pleasure to meet you.” are formal greetings.()
“Howdy!” This is a very informal abbreviation of “ How do you do?”()
English-speaking people usually greet each other in an()way
A. formal
B. informal
C. casual
对里昂惕夫之谜有如下解释()
A. 劳动效率的差异
B. 人力资本的差异
C. 自然资源因素被忽略
D. 要素密集型逆转发生