Quite a few (experiment) ______ tests have been done, but none of them could hel

游客2023-09-25  13

问题 Quite a few (experiment) ______ tests have been done, but none of them could help to cure the patient.

选项

答案 experimental

解析 因为text前需用形容词来修饰,且experiment的形容词表示“实验性的”,在意思上通顺,故填experimental。句意:(医生)做了很多实验性的测试,但没有一次测试能治愈这位病人。
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