目前提出的降低多层CT剂量的措施之一是() A.不变焦点技术 B.可变焦点技术 C. 发布时间:2017-06-01 17:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 目前提出的降低多层CT剂量的措施之一是()A.不变焦点技术B.可变焦点技术C.焦点增大技术D.焦点减小技术E.焦点对称技术
题型:单项选择题 The talk between the two leaders was aimed at ending the long of war between the two countries.A.senseB.state C.caseD.condition 查看答案
题型:单项选择题 —You may find the key to the math problem on page 107.—Ah, it's so simple. I wonder why I _____ of that.A.hadn’t thoughtB.haven't thoughtC.didn't thinkD.wasn't thinking 查看答案