Mark the letter A, B, C, or D to indicate the correct answer
In 1886 in the United States, a pharmacist named Dr. John Pemberton tried to invent a medicine because he wanted a cure for ____.
A. headache
B. headaches
C. a headache
D. the headaches
Giải bởi Vietjack
Đáp án đúng là: B
Những chứng/ căn bệnh đau đầu (nghĩa khái quát)
Dịch: Vào năm 1886 tại Hoa Kỳ, một dược sĩ tên là Tiến sĩ John Pemberton đã cố gắng phát minh ra một loại thuốc vì ông ấy muốn có một phương pháp chữa trị chứng đau đầu.
The invention of printing on paper provided a technology ____ which information could be stored over the long term.
The carbon dioxide gas given ____ by the fermenting vat was known as "fixed air".
The key ____ inventive success often requires being in the right place at the right time.
A patent invention is protected by law ____ only particular people or companies have the right to make or sell it.
Ever since the first prehistoric stone tools, ____ have lived in a world shaped by invention.
Inventor, a person who brings ideas or objects together in a novel way to create an invention, something that did not exist before.
Mark the letter A, B, C, or D to indicate the correct answer
Both inventors and engineers look for ways to improve things in areas like health, food, safety, transportation, aerospace, electronics, ____, and the environment.
The bicycle as we know it today was originally developed as the "safety bicycle", because other bikes ____ were extremely dangerous.
It is the classical Athenians who can probably lay claim ____ the invention of commercial advertising as we know it today.
Some inventions make bigger impact on the public than ____, and some inventions quickly become part of everyday life.
The late 1800s and early 1900s ____ excitement over a wide array of inventions and developments.
The European Patent Convention, which was implemented in 1977, created a European Patent Office that can issue ____ European patent.
An invention developed ____ one purpose will sometimes find use in entirely different circumstances.
The first American ____ the propelling of a boat by steam was William Henry, a gunsmith of Lancaster, Pennsylvania.
Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s)
It was not until 1959, twenty-one years after Carlson invented xerography, that the first convenient office copier using xerography was unveiled.
