Many farms in the southern United States yield hay and tobacco.

[单选题]Many a school in the United States ______to train men in theology.A． was set upB． were set upC． has set upD． have set up

Many suburban residents in the United States __________an invisible electronic f

In the middle of winter, when snow is falling in many parts of the United States

[单选题]During the United States Civil War, many people in the South were forced to

concentriate:In the United States, but also believed that it is the United State

"Two and a half centuries on, most countries impose some sort of tax on alcohol

[单选题]Passage FiveIn the United States, it is important to be on time, or punctual, for an appointment, a class, etc. However, this may not be true in all countries. An American professor discovered this difference while teaching a class in a Brazilian (巴西

[单选题]The authors of the United States constitution attempted to establish an effective national government while preserving ______for the states and liberty for individuals.A． autonomy B dignity C monopoly D stability

[单选题]And in the United States，13 antidumping suits were（）Korean firms.A . brought againstB . fought againstC . charged forD . sued with

[单选题]Professors in the United States usually expect the students______.A． to know all the answersB． never to seek their adviceC． to take the initiative and be independentD． to work together