句意:Have you seen the first photo of a black hole on the Internet? What an amazing photo it is! 你在网上看到过第一张黑洞的照片吗?这张照片真是太棒了!不定冠词有两个,a 和 an。a用在辅音音素开头的单词前面;an用于以元音音素开头的单词。The为定冠词和名词连用,表示某个或某些特定的人或东西...
The Laser Interferometer Gravitational-wave Observatory (LIGO) and its partner detector Virgo have made their biggest find yet. They spotted two huge black holes smashing together to form another with a mass 142 times that of the sun, the biggest black hole detected using gravitational ...
解析 1.D解析:第一空后有序数词“first”,且此处是特指“第一张照片”,则第一空用定冠词 the;第二空所在句为what引导的感叹句,因为“amazing photo”是可数名词单数,且amazing的发音以元音音素开头则第二空应填不定冠词an。故选D。 反馈 收藏
“This system is super exciting for black hole evolution, and it also raises questions of whether there are more triples out there,” Kevin Burdge, lead author on the study from MIT, said in a press statement.“We think most black holes form from violent explosions of stars, but this ...
is classic Mac (片中)例:This mess is just classic Adam (这么乱一定是Adam干的) This writing style is just classic Mr Jin .(这个作品一看就知道是金先生的) Classic Flavor 最正宗的(香烟上可以看到) (第24集) 1.Ten-four 收到 例:A: We found him under the bridge , His leg is broken ....
2.A.词义猜测题.根据上下文内容可知,This theory has now been toppled by LB-1,the newly discovered black hole.句意为现在,新发现的黑洞LB-1推翻了这一理论.故意为推翻.故选A.3.D.细节理解题.根据倒数第三段f this is how LB-1 formed,then we may have "direct evidence for this process" for ...
from VFTS 243 wasfrom a single source, not two separate stars. With no detectable radiation emanating from the star’s companion, the only possible conclusion was that the second body within the binary is a black hole and thus the first dormant black hole found outside of the Milky Way ...
“Black holes of such mass should not even exist in our galaxy, according to most of the current models of stellar evolution,” said Liu Jifeng, head of the team that made the discovery.“LB-1 is twice as massive as what we thought possible. Now theorists will have to take up the ...
After more calculations and additional data from the Tillinghast Reflector Echelle Spectrograph and the Gaia satellite, they realized they had found a low-mass black hole, likely about 3.3 times themass of the sun. "What we've done here is come up with a new way to search for black holes,...
分析“A black hole is a place where matter is so dense that the pull of its gravity(引力) is very, very strong. The gravity from a black hole is so strong that even light cannot get away from it.”可知,黑洞是一个物质密度非常大的地方,它的引力非常非常强。黑洞的引力是如此之强,以至于...