【简答题】换乘站客流具有哪些特征?在进行换乘设计时应注意什么?
【单选题】Currently, three is a(n)______ in the number of childless marriages.
【单选题】Most marriages in America, particularly first marriages involving young couples, are the result of mutual attraction and affection rather than______ considerations.
【单选题】常用表面活性剂溶血作用的大小次序是( )
A.
聚氧乙烯烷基醚>聚氧乙烯芳基醚>聚氧乙烯脂肪酸酯类>聚山梨酯类
B.
聚山梨酯类>聚氧乙烯烷基醚>聚氧乙烯芳基醚>聚氧乙烯脂肪酸酯类
C.
聚氧乙烯芳基醚>聚山梨酯类>聚氧乙烯烷基醚>聚氧乙烯脂肪酸酯类
D.
聚氧乙烯芳基醚>聚氧乙烯烷基醚>聚山梨酯类>聚氧乙烯脂肪酸酯类
【单选题】The 'astute marriages' in the passage refers to marriages between_____.
A.
British aristocracy and rich American entrepreneurs
B.
old British aristocratic families and newly knighted aristocracy of wealth
C.
aristocratic families and new business families of money and enterprises
D.
big landlord families in the British countryside and rich American tycoons of industry