题目: 生物安全柜可保护()不受污染A、样品B、环境C、实验者D、以上都是 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0210/ba32c62bfe7731bcf711532ac00a9024.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:选择题 Steve, could you help me ___________ when the plane will take off on the Internet?-I'm sorry, my computer doesn't work.[ ]A. get on B. find outC. look forD. look after 查看答案