Lb5A1033在较完整的岩石中钻孔,最好用()作冲洗液。 A.泥浆; B.乳化液; 发布时间:2017-09-13 15:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: Lb5A1033在较完整的岩石中钻孔,最好用()作冲洗液。A.泥浆;B.乳化液;C.清水;D.SM植物胶。
题型:单项选择题 What worried the child most was ______ to visit his brother in hospital.A. his not being allowedB. his not allowing C. his being not allowedD. having not been allowed 查看答案
题型:单项选择题 关于老年人身体活动指导说法错误的是()A.老年人参加运动期间,应定期做医学检查和随访B.老年人在服用某些药物时,应注意药物对运动反应的影响C.健康老年人可通过举哑铃、绑沙袋等活动增加肌肉力量D.合并有骨质疏松症的老年人,可进行跳绳、跳高等身体活动 查看答案