Not only are the patient populations different in HPV-positive and HPV-negative head and neck cancer, but the tumors look different under a microscope, Gillison said.

Gillison博士说，这些头颈部癌症患者不仅是在HPV阳性和阴性的不同，而且在显微镜下它们的表现也不一样。

youdao

Try to do it each time you catch yourself being hard on yourself so that you do not spend the whole day, week, etc. with this negative thought going through your head.

试着在每一次你对自己严苛的时候做这样的功课，以便你不用在一整天或整个星期等等带着这些负面的想法过活。

youdao

Minutes before, you might feel jittery or faint while negative thoughts churn in your head.

或者你脑子里突然会冒出一些消极的想法，这让你出汗或感觉无力；

youdao

But when we're thinking about actual wave behavior of electrons, it's just important to keep in the back of our head that some areas have positive amplitude and some have negative.

电子的波动行为时,我们，要记住,某些地方是正的,某些地方是负的,当我们讲到。

麻省理工公开课 - 化学原理课程节选

Watching the descent of consumer prices this past spring, it looked like CPI growth would approach zero by the end of the summer and then head into negative territory.

FORBES: The Printing Press Produces Inflation, Just Not Where It's Needed

However, this is the first study to film and observe an ape shaking its head in a negative context to stop or prevent other bonobo behaviour.

BBC: Earth News - Bonobo chimps filmed shaking their head to 'say no'

Fearing financial turmoil, people prefer to spend money than to save, particularly when real interest rates are negative, says Sergei Guriev, head of the New Economic School.

ECONOMIST: Russia��s presidency: The odd couple | The