27. ______ calculators makes it harder to succeed in business.
(A) Not know how to use
(B) Not knowing what to use
(C) Not knowing which to use
(D) Not known to use
(E) Not knowing how to use
答案:登入後查看
統計: A(4), B(3), C(0), D(1), E(43) #939623
統計: A(4), B(3), C(0), D(1), E(43) #939623