The basic causes are unknown though certain conditions that may lead to cancer have been______.

admin2016-03-21 22

问题 The basic causes are unknown though certain conditions that may lead to cancer have been______.

选项 A、identified
B、guaranteed
C、notified
D、conveyed

答案A

解析

转载请注明原文地址:https://kaotiyun.com/show/VGai777K

GCT工程硕士（英语）

相关试题推荐

随机试题

最新回复(0)