In 1620, Mayflower, the ship in which the Pilgrim Fathers sailed, voyaged to _______in America.
A. Plymouth
B. James Town
C. Boston
D. Philadelphia
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Vanity Fair was written by ________.
A. Jonathan Swift
B. Charles Dickens
Charlotte Bronte
D. William Thackery
The largest English dictionary is ________.
A. Webster's New World Dictionary of the American Language
B. Oxford English Dictionary
C. Longman Contemporary English Dictionary
D. The American Heritage English Dictionary
以下作用,属于永久作用的是( )。
A. 结构自重
B. 土重
C. 基础变位影响力
D. 水浮力
以下作用,属于永久作用的是( )。
A. 桥面铺装自重
B. 土侧压力
C. 混凝土收缩、徐变影响力
D. 预应力
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