足月妊娠时的胎心率正常值应是每分钟 ( )。A.90~130次 B.100~140 发布时间:2017-06-24 14:26 │ 来源:www.tikuol.com 题型:单项选择题 问题: 足月妊娠时的胎心率正常值应是每分钟 ( )。A.90~130次B.100~140次C.110~150次D.120~160次E.130~170次
题型:单项选择题 下面是某学生学完化学用语后一次练习的部分内容,其中理解不正确的是A.2MnO4—:表示2个锰酸根离子B.Ar:表示氩气、氩元素和一个氩原子C.2CO2:表示2个二氧化碳分子D.维生素C(C6H8O6):表示该物质由碳、氢、氧三种元素组成。 查看答案
题型:单项选择题 Questions ·Look at the questions for this part. ·You will hear a passage about job. You will listen to it twice. ·For questions , indicate which of the alternatives A, B, or C is the most appropriate response.We can infer from this passage that a change-over of roles in the family ______. A. is quite necessary in modern lifeB. is probably based on some practical reasonsC. aims solely at a complete emancipation of women 查看答案