按油井自喷能力的大小,将试油方法分为()2种。A.常规试油和电缆测试 B.单层试油和 发布时间:2020-01-07 16:42 │ 来源:www.tikuol.com 题型:单项选择题 问题: 按油井自喷能力的大小,将试油方法分为()2种。A.常规试油和电缆测试B.单层试油和分层试油C.提捞试油和抽汲试油D.自喷试油和非自喷试油
题型:单项选择题 The boy ______ lost his backpack has to borrow books from his teachers. A. who B. whose C. which D. whom 查看答案