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So the star blast is also the most ancient ever observed. The exploding star the Swift satellite observed was typical of the death of a massive star. These blasts am the most powerful in the universe, sending out 100 million times the energy the Sun does in one year. They are not rare...
1、代指对象不同：which一般指代事物、动物，或者指代婴儿、小孩；who指代人或者拟人化的动物。如:The book which I bought is very cheap.我买的书非常便宜。I know the man who stole Mary's wallet.我认识偷玛丽钱包的人。2、是否可以省略：which 指物，在定语从句中做主语或宾语，做宾语时常可...
My grandfather was afraid of leaving the only home they had known for the past 60 years. The idea of having to sell their home and move into a retirement home was an extremely painful experience for them. Indeed, old age for them, and many old Americans can mean not only the possible ...
As a matter of fact, it is a combination of picking and jogging, which means picking up trash while working out. Many people think highly of it because plogging benefits us a lot. It not only helps us keep physically and mentally healt...
otherwise XY embryo, indicating that even though mosaicism for the sex chromosomes is present, such abnormalities would not lead to a misdiagnosis of sex... JC Harper,E, Coonen,AH Handyside,... - 《Prenatal Diagnosis》 被引量: 0发表: 2019年 Satellite DNA Mapping in Pseudis fusca (Hylidae...
听力原文：M: Ow! That hurts!W: What happened? Did you cut yourself'?M: Yes—on the edge of this paper．How can such a little cut hurt so much? I'm not even bleeding, but my finger really hurts.W: You know, I...
C. a small heavy satellite which sends out strong radio signals and cannot be seen D. a small intelligent being who sends out strong radio signals and cannot be seen 25. Which of the following is true? A.One of the pulsars found by scientists sends radio signals. ...
an event. A decline in live coverage could send viewers away and drive ratings down, but there is not enough money to do everything. So decisions must be made and be made rapidly because delay can mean a missed connection for shipping tape or access to a satellite blocked by a competitor...
a别用英语,我们是中国人 Do not use English, we are the Chinese[translate] aSATELLITE RADIO TUNER 卫星无线电条频器[translate] a这些书在桌子下面 These books under table[translate] aI was dead 正在翻译,请等待... [translate] aI will remember what you said 我将记住什么您说[translate] ...