Well, I had a lot of tension while you've been studying hard on your course in D.C.

出自-2013年6月听力原文

D )it had been parked at a wrong place

出自-2012年6月听力原文

finally, the FBI received a tip that the stolen document was located very close to Washington, D.C.

2018年6月四级真题（第二套）阅读 Section C

D The robotic industry has benefited from the economic recession.

出自-2012年12月阅读原文

The most recent one took place last week in Washington, D.C.

2017年6月六级真题（第三套）阅读 Section B

Despite recent advancements in 3D food printing, the industry has many challenges to overcome.

2018年高考英语天津卷 阅读理解 阅读C 原文

Future 3D food printers could make processed food healthier.

2018年高考英语天津卷 阅读理解 阅读C 原文

In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

2018年高考英语天津卷 阅读理解 阅读C 原文

In the 1980s, electrical lines an d lead poisoning nearly drove them to dying out.

2016年高考英语北京卷 阅读理解 阅读C 原文

Instead, I ‘d head straight for Yangshuo.

2015年高考英语全国卷1 语法填空 原文

It takes sunscreen about fifteen minutes to start working, and that's plenty of time for your skin to absorb a day's worth of Vitamin D.

2019年高考英语全国卷I 阅读理解 七选五 原文

Join a guided bike tour and view some of the most popular monuments in Washington, D.C.

2018年高考英语全国卷I 阅读理解 阅读A 原文

Join a small group bike tour for an evening of exploration in the heart of Washington, D.C.

2018年高考英语全国卷I 阅读理解 阅读A 原文

Newcomers and locals looking to experience Washington, D.C.

2018年高考英语全国卷I 阅读理解 阅读A 原文

On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad.

2018年高考英语天津卷 阅读理解 阅读C 原文

Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

2018年高考英语天津卷 阅读理解 阅读C 原文

Some experts doubt 3D food printing.

2018年高考英语天津卷 阅读理解 阅读C 选项

The challenges for 3D food production.

2018年高考英语天津卷 阅读理解 阅读C 选项

There's a new frontier in 3D printing that's beginning to come into focus: food.

2018年高考英语天津卷 阅读理解 阅读C 原文

This small group bike tour is a fantastic way to see the world-famous cherry trees with beautiful flowers of Washington, D.C.

2018年高考英语全国卷I 阅读理解 阅读A 原文

To make sure you get enough Vitamin D—but still protect your skin—put on sunscreen right as you head outside.

2019年高考英语全国卷I 阅读理解 七选五 原文

When mom said, " the c-a-n-d-y is hidden on the top shelf, " I knew where the candy was.

2019年高考英语天津卷 阅读理解 阅读B 原文

While the sun's rays can age and harm our skin, they also give is beneficial Vitamin D.

2019年高考英语全国卷I 阅读理解 七选五 原文

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake.

2018年高考英语天津卷 阅读理解 阅读C 原文

"Idleness is not just a vacation, an indulgence or a vice; It is as indispensable to be brain as vitamin D is to the body...[idleness] is, paradoxically, necessary to getting any work done," he argues.

2018年考研真题（英语二）阅读理解 Section Ⅱ

But it is really happiness that's linked to investment, or could something else about happier cities explain why firms there spend more on R and D?

2016年考研真题（英语二）完形填空 Section Ⅰ

Especially, firms in happy places spend more on R and D .

2016年考研真题（英语二）完形填空 Section Ⅰ

The best uses of 3 D printers and virtual reality haven't been invented yet.

2018年考研真题（英语一）阅读理解 Section Ⅱ