49. With the weak glue, one can __________.
(A) keep books from falling apart
(B) build an airplane
(C) stick a piece of paper to a surface temporarily
(D) cheat on exams without being caught
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統計: A(31), B(9), C(285), D(3), E(0) #1573277
統計: A(31), B(9), C(285), D(3), E(0) #1573277