U

U怎么读

U的意思释义

n.

英语字母表的第21个字母；

英英释义

n.

a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

同义词：uracil

a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

同义词：uraniumatomic number 92

the 21st letter of the Roman alphabet

同义词：letter u

adj.(chiefly British) of or appropriate to the upper classes especially in language use

U用法及例句

词组短语

u turn掉头

例句参考

Postwar U.S business cycles: An empirical investigation

Natural Gas from Seaweed: Is Near-Term R&D Funding by the U.S. Gas Industry Warranted?

Pharmaceuticals, Hormones, and Other Organic Wastewater Contaminants in U.S. Streams

Guerilla Warfare & Law Enforcement: Combating the 21st Century Terrorist Cell within the U.S.

Design of Patch Antenna with Inverted U Slot for WiMax Application

Climate Change Effect on Thermal Power Cooling in the U.S.

A prospective study of cigarette smoking and risk of colorectal adenoma and colorectal cancer in U.S. women

Citizenship, College Degrees, and Occupational Outcomes:  A Comparison of Latino Immigrants and U.S. Natives at the Turn of the Cen...

Agenda and Notice of a Public Meeting of the State Advisory Committee Chairs of the Southern Region of the U.S. Commission on Civil ...