语法与词汇
12.______results show that the tank is not leaking, but this has to be confirmed by further medical trials.
【正确答案】
B
【答案解析】形容词形异义异辨析。preliminary通常定语，意为“初步的，预备的，开端的”，如：May I make a few preliminary remarks before we start the interview?在我们面试开始之前我先说几句话可以吗?