U.S. tariffs on imported goods:
1) have steadily increased since the 1970s.
2) have declined since the 1940s and are currently around 5 percent.
3)are currently around 20 percent.
4)are illegal.
2.The largest goods imports of the United States (in dollar volume) are:
1) chemicals, consumer durables, aircraft, and grain.
2) petroleum, automobiles, metals, and household appliances.
3) iron and steel, clothing, electronic equipment, and sugar.
4)aircraft, paper products, television sets, and furniture.