Garrett Morgan also invented the traffic light which saves numerous lives on our streets.Daniel Hale Williams was the first successful heartsurgeon.Charles Drew saved hundreds of thousandsof lives during World War ll by his discovery of theways and means of preserving blood plasma.Percy Julian has...
Garrett Morgan also invented the traffic light which saves numerous lives on our streets. Daniel Hale Williams was the first successful heart surgeon. Charles Drew saved hundreds of thousands of lives during World War II by his discovery of the ways and means of preserving blood plasma. Percy ...
sponsors. Young sailors also attract various views. For example, Jessica Watson was asked by the government to cancel her voyage yet the Prime Minister called her “a hero for young Australians” when she returned. It seems there is confusion about the competence and independence of young people...
根据上句谓语动词invented可知,此句是一般过去时态。此空是改变的意思,根据句意和首字母可知,此空故填changed。【小题6】句意:在灯泡之前,晚上很黑,人们不能做很多工作。根据可前so和空后at night可知,此空应填形容词,是黑暗的; 昏暗的意思,根据句意和首字母可知,此空故填dark。【小题7】句意:人们晚上...
( )3. When was the telephone invented A. In March of 1867. B. In March of 1876. C. In March of 1786.( )4. Where are the two speakers A. At a bus station. B. At a train station.C. At an airport.( )5. What does the woman ask the man to do A. To take the ...
What was needed was a way to measure something related to BAC without invading a suspect's body. In the 1940s, breath alcohol testing devices were first developed for use by police. In 1954, Dr. Robert Borkenstein of the Indiana State Police invented the Breathalyzer, one type of breath ...
It was probably an LED television. Here's where the acronyms get a bit confusing: Those LED TVs are still LCD TVs, because the screens themselves are comprised of liquid crystals. Technically, they're LED-backlit LCD TVs. Instead of fluorescent tubes, LEDs shine light from behind the screen...
aI felt that I had enough of a relationship with Jamie that I should be the one who tells him,which i did.But it was not easy. 我认为我有足够与Jamie的一个关系我应该是告诉他,我的人。但它不是容易。[translate] apower cycle the device 力量周期设备[translate] ...
She answers the teachers' questions ___in her class. A. more active, more actively B. more active, more actively C. more active, the most actively D. active, the most actively 3(. 山西中考). —The more I get to know Nancy, the more I can realize that we have a lo...
1. during the summer holidays在暑假期间 2. between…and…在两者之间 3. cheer sb. on为某人加油 4. prefer doing sth.更喜欢做某事 5. quite a bit/a lot很多 6. plan to do sth.计划做某事 7. have a skating club举...