The pollution preventing project as well as several other issues is going to be discussed when the Congress is in（）again next spring.

单项选择题I promise never to get drunk（）

A．hence
B．therefore
C．henceforth
D．thereby

单项选择题Nowadays advertising costs are no longer in reasonable（）to the total cost of the product.

A．proportion
B．correlation
C．connection
D．correspondence