主页
学科
搜索
账户
常见问题
当前学科:精液检查
题目:
单选
正常精子总数应该()
A . ≥20×10
6
/次
B . ≥30×10
6
/次
C . ≥40×10
6
/次
D . ≥50×10
6
/次
E . ≥60×10
6
/次
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
腋路阻滞法臂丛神经阻滞往往不容易阻滞的神经是()。
备用采煤工作面的风量不得低于其采煤时实际风量的()。
典型肺脓肿的临床表现是()
自感电动势的计算公式是()。
肺癌最常见的病理类型是()
定子绕组的旋转磁场转速与磁极对数有关,有一台两对极的电动机,当交流电变化了一周,其旋转磁场变化了多少()
()是人从环境中获取知识和应用知识的活动,它包括感觉、知觉、记忆、想象和推理等心理现象。
患者男,35岁,腰背痛10个月,加重伴双下肢麻木、无力2个月,进行性发展,麻木由下肢向上发展,近两天大、小便困难。体检:双下肢肌张力增高,肌力3级,剑突以下感觉减退,膝反射亢进,双侧Babinski征阳性。该患者临床应首先考虑()
下面哪个是PhotoShop图像最基本的组成单元?()
Estimating schedule activity costs involves developing an (1) of the cost of theresources needed to complete each schedule activity. Cost estimating includes identifying and considering various costing alternatives. for example, in most application areas, additionalwork during a design phase is widely held to have the potential for reducing the cost of the execution phase and product operations. the cost estimating process considers whether the expected savings can offset the cost of the additional design work. cost estimates are generally expressed in units of (2) to facilitate comparisons both within and across projects.the (3) describes important information about project requirement that is considered during cost estimating. 空白(2)处填()