This (equipment) is (based upon) advanced (techniques) and it is (highly reliable).

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问题 This (equipment) is (based upon) advanced (techniques) and it is (highly reliable).

选项 A、equipment
B、based upon
C、techniques
D、highly reliable

答案C

解析 应改为technology。technique为“技巧,方法”,technology为“技术”,不可数,这里应是“以先进的技术为基础”,故改为technology。
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