单选题What is the smallest positive integer k for which 784 is a factor of 14k?
单选题Is △ABC isosceles?1∠A and∠B don’t have the same measure.2∠A and∠B have the same measure.
单选题The Sumpton town council recently voted to pay a
单选题Which of the following integers does NOT have a factor greater than 1 that is the square of an integer?
单选题Which of the following most logically completes
单选题If S is the sum of the first n positive integers, what is the value of n ?1 S220
改错题Because of the sharp increases in the price of
改错题As business grows more complex, students
改错题Despite the Puritan sumptuary laws prohibiting
改错题An analysis of tree bark all over the globe
改错题Because the collagen fibers in skin line up in
改错题In 1776 Adam Smith wrote that it is young people
改错题Whether they will scale back their orders to
改错题Kudzu, an Asian vine that has grown rampantly in
改错题The interior minister explained that one of the
改错题Using digital enhancements of skull fragments
改错题Industry analysts said that the recent rise in
改错题Even though the overall consumer price index did
改错题In theory, international civil servants at the
改错题Like Darwin and his fruitful voyage on the Beagle