低温条件下工作的润滑油应选取有较低()的润滑油。 A.凝固点 B.沸点 C.闪点 D 发布时间:2018-08-25 08:35 │ 来源:www.tikuol.com 题型:单项选择题 问题: 低温条件下工作的润滑油应选取有较低()的润滑油。A.凝固点B.沸点C.闪点D.泡点
题型:单项选择题 (2013·高考浙江卷)Bears ________ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.A.pack upB.build upC.bring upD.take up 查看答案