【单选题】The 1906 earthquake in San Francisco is the most severe one in American history.
【判断题】In the past sixty years San Francisco is one of the cities in the United States to have completed a new mass transit system.
【单选题】San Francisco is one of the largest cities in California and a leading center of culture, __________, and industry in the United States.
【单选题】听力原文: We can agree with primitive man that food is a basic need, but we differ from him in our food wants because of the wide variety of food we have available compared with him we have a wider choice...
A.
Food is no longer a basic need for us, while it was for primitive people.
B.
We eat a wide variety of food.
C.
We no longer eat fruit that primitive people ever ate.
D.
We eat more food than primitive people do.
【单选题】San Francisco is one of the largest cities in California and a leading center of culture, ______, and industry in the United States.
【判断题】逻辑与运算符是表示两个概念之间具有交叉关系,用于组配具有统一、近义或可替换关系的词。
【单选题】此例中限速器安全钳未动作。如果动作,轿厢安全钳的限速器的动作应发生在速度至少等于额定速度的( )时。
【简答题】San Francisco is one of the largest cities in California and a leading center of culture, __________, and industry in the United States.
【判断题】In the past 60 years San Francisco is one of the cities in the US to have completed a new mass transit system.