He __________<br/>his sore arm. A: threatened B: withdrew C: rubbed D: ordeal

Every component has to be tested meticulously to make sure it will stand the of time.( ). A: exam B: trial C: test D: ordeal

painstaking effort 未知类型：{'label': 'questionDesc', 'content': '选出单词的同义词', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '2018年6月 六级 卷二 仔细阅读2', 'isMemberControl': 0, 'type': 181} A: painful experience B: labor cost C: laborious ordeal