462. With the iPhone, Apple is having a _______ impact on the way people use cell phones.
(A) time-consuming
(B) chemical
(C) experimental
(D) significant
4 Of the 800,000 tons of wheat the country imported, about 260,000 tons, _______ one-third of it, was from
Australia.
(A) approximately (B)appropriately (C) externally (D) incidentally