更多“第二次减数分裂的主要特点
”相关的问题
下列描述不正确的是（）
A.正常情况下，双肾位置随呼吸上下移动
B.站立时，上下移动超过正常范围者，称为肾下垂
C.正常人右肾比左肾高
D.两肾长轴呈向下"八"字形
E.两肾成类蚕豆外形
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男，29岁，尿频、尿急、尿痛2年余，有时尿混浊，服用多种抗生素治疗无效。尿液检查：脓球满视野，蛋白(++)。具有诊断价值的辅助检查为()
A . A．肾图
B . B．膀胱镜
C . C．IVP
D . D．尿结核杆菌检查
E . E．彩超肾脏血流测定
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磁共振成像实际上是对人体内的什么进行成像
A．氧质子
B．电子
C．氢质子
D．氢中子
E．离子
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销售误导的代理人处罚，包括警告、严重警告、记过和解约。
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硅质岩是化学和生物化学作用形成的、富含SiO2的沉积岩，其SiO2的含量一般为（）。
A.50%~60%B.60%~70%C.70%~90%D.80%~100%
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河北省科学和技术发展“十二五”规划中提出要推进( )个重大科技行动。
A、6
B、8
C、10
D、12
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（）法是用精油所制成的香水，擦拭或按摩身体局部，使人在清香中感受其疗效。
A.擦拭按摩B.冷热敷C.熏香D.日常护理
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按是否记载股东姓名,股票可以分为?
A. 普通股 B. 优先股 C. 记名股 D. 不记名股
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治疗心悸心阳不振证，应首选（）。,治疗心悸水饮凌心证，应首选（）
A．知柏地黄丸B．桃仁红花煎C．归脾汤D．苓桂术甘汤E．桂枝甘草龙骨牡蛎汤
B．桃仁红花煎C．归脾汤D．苓桂术甘汤E．桂枝甘草龙骨牡蛎汤
C．归脾汤D．苓桂术甘汤E．桂枝甘草龙骨牡蛎汤
D．苓桂术甘汤E．桂枝甘草龙骨牡蛎汤
E．桂枝甘草龙骨牡蛎汤
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Just four bits of information collected from a shopper’s credit card can be used to identify almost anyone, researchers have found. The study in the journal Science【C1】______ three months of credit card records for 1. 1 million people in an【C2】______ industrialized country. Ninety percent of individuals could be【C3】______ identified using just four pieces of【C4】______ , such as where they bought coffee one day or where they a【C5】______ new jumper or pair of shoes. 【C6】______ , credit cards use was just as【C7】______ at identifying someone as mobile phone records, the study found. Knowing the price of a【C8】______ could boost the risk of re-identification by 22 percent. "Even data sets that【C9】______ coarse information at any or all of the dimensions provide little anonymity(匿名)，" the study, led by Yves-Alexandre de Montjoye at the Massachusetts Institute of Technology and colleagues at Aarhus University in Demark, revealed.【C10】______ some of the specifics were stripped from credit card data, such as【C11】______ the general area where a purchase was made instead of the【C12】______ shop, or expanding the time range to 15 days【C13】______ one, a person who would have believed themselves believed themselves【C14】______ could be re-identified with "just a few more【C15】______ data points", said the study. "Women are more than【C16】______ men in credit card metadata, " it added. People with higher【C17】______ were also easier to identify, perhaps because they "have【C18】______ patterns in how they divide their time between the【C19】______ they visit", added the study. The researchers【C20】______ more advanced technologies to protect data that is simply made anonymous.
A．consciouslyB．hardlyC．uniquelyD．suspiciously
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试说明下列方程所表示的曲面是柱面： （x+y）（y+z）=a2
试说明下列方程所表示的曲面是柱面：
（x+y）（y+z）=a2
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根据结构特点，疑问句可以分为是非问、（）、选择问和正反问。
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属于一级国家重点保护野生动植物药材的是（）
A.虎骨
B.甘草
C.刺五加
D.黄芩
E.丹参
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人吃了含（）以上的毒麦的面粉会引起中毒。
A.1%
B.2%
C.4%
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