摘要：It’s often less expensive to buy goods in quantity, but you’d better examine quality before buying them. A. / ; the B. the; / C. a; the D. the; the
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It’s often less expensive to buy goods in ________ quantity, but you’d better examine ________ quality before buying them．
- A./; the
- B.the;/
- C.a; the
- D.the; the