英语作文不想丢分?吃透 perform 这 4 个用法,阅卷老师直接给高分!
在中学英语书面表达里,总有一些高频词,既能避开简单词的平庸,又能精准戳中阅卷老师的得分点,perform就是妥妥的宝藏动词!很多同学只知道它表 “表演”,一到作文里还只会用 do、play、act,白白丢了文采分。
学了高端英语,亲子阅读还可以这样拓展,轻松高效
郑老师寄语:今天这篇文章是高端英语学员多利妈妈的反馈。多利妈妈在陪娃读绘本时,结合高端英语内容,穿插生活中的经历,深入拓展,一起和娃探讨交流,孩子很享受这个过程,自然而然习得很多英文。
INC巴特朗菲教授研究分享:颅内动脉瘤栓塞后为何还要开颅手术?
介入栓塞已经成为颅内动脉瘤治疗的主流方式,它的核心优势在于通过血管内操作完成治疗,避免了开颅带来的创伤,术后恢复也比显微外科手术要快得多。但现实中,确有一部分患者在完成介入栓塞之后,仍然不得不走上手术台。
“方形小屋”距离80米,真是外星人建筑吗?玉兔明年3月即可抵达
很多朋友都认为月球背面一定隐藏着一些不可告人的秘密,因为月球的“行为”太可疑了,一直隐藏着不让人类看到,但我国的第二个月球探测车就在月球背面溜达,而且在前阵子嫦娥二号还发现了一个神秘的方形建筑,可能会是什么东西呢?
NASA最担心事情发生? 2024中国发射中继星: 阿尔忒弥斯任务或被监视
1月18日,美媒SpaceNews发布报道称,中国将于2024年发射中继卫星“鹊桥二号”以支持嫦娥计划的后续登月任务,这颗卫星将在中国未来的嫦娥探测器登陆点与地球之间建立中继通信任务。
《自然》(20220818出版)一周论文导读
Abstract:Pumps are transport mechanisms in which direct currents result from a cyclic evolution of the potential. As Thouless showed, the pumping process can have topological origins, when considering the motion of quantum particles in spatially and temporally periodic potentials. However, the periodic evolution that drives these pumps has always been assumed to be imparted from outside, as has been the case in the experimental systems studied so far. Here we report on an emergent mechanism for pumping in a quantum gas coupled to an optical resonator, where we observe a particle current without applying a periodic drive. The pumping potential experienced by the atoms is formed by the self-consistent cavity field interfering with the static laser field driving the atoms. Owing to dissipation, the cavity field evolves between its two quadratures, each corresponding to a different centrosymmetric crystal configuration. This self-oscillation results in a time-periodic potential analogous to that describing the transport of electrons in topological tight-binding models, such as the paradigmatic Rice–Mele pump. In the experiment, we directly follow the evolution by measuring the phase winding of the cavity field with respect to the driving field and observing the atomic motion in situ. The observed mechanism combines the dynamics of topological and open systems, and features characteristics of continuous dissipative time crystals.
黄奕也没想到,与她分手多年的聂远,如今竟靠12岁女儿狠狠的长脸
文|辣辣7月16日,一段小学生毕业视频火了。聂远十二岁的女儿彻底出圈,举止大方、才艺出众,全网都在夸孩子教养好。当他的日子越过越精彩时,也有很多人想起了当年和他有过一定联系的黄奕。谁也想不到,当年和聂远真心爱过的她,这些年一直风波不断、争议缠身。