摘要：3．This new method of mining for opals is very popular in Australia because it calls for equipment than the one． A．less; elder B．fewer; older C．fewer; elder D．less; older
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This new method of mining for opals is very popular in Australia because it calls for ________ equipment than the ________ one．
- A.less; elder
- B.fewer; older
- C.fewer; elder
- D.less; older