試題詳解

34.
(A) There are no education requirements for the course.
(B) For example, students around the world are taking a free course called \"Building a Computer Search Engine.\"
(C) Those are not graded and students try those as often as they want.
(D) The school plans to offer many free, non-credit courses through a project called MITx.
(E) Some universities offer free, non-credit MOOCs available to anyone in the world.)