更多"Recently, great advances have been "的相关试题:
[单项选择]Recently, great advances have been made in the study of Venus' surface by the use of radar waves to _________ the dense cloud layer.
A. pierce
B. penetrate
C. plunge
D. persecute
[单项选择]Great efforts have been made to ________the diplomatic relations between the two countries.
A. normalize
B. modernize
C. mechanize
D. standardize
[单项选择]Today, household chores have been made much easier by electrical ______.
A. facilities
B. equipment
C. appliances
D. utilities
[单项选择]Attempts have been made for nearly three decades to increase the amount of precipitation from clouds by seeding them with salt or silver iodide.
A. Devices
B. Hypotheses
C. Efforts
D. Suggestions
[单项选择]Numerous attempts have been made to hide the truth.
A. Many
B. Successful
C. Effective
D. Unsuccessful
[单项选择]Strenuous efforts have been made to ______ government expenses to a desired level.
A. cut off
B. cut back
C. cut down
D. cut short
[单项选择]（）so many profits have been made in the past 4 years is the strongest argument for continuing the business.
A. What
B. Since
C. Now that
D. That
[单项选择]______ all the decisions have been made, we shall start putting them into practice.
A. For now
B. Now that
C. Ever since
D. By now
[单项选择]______so many profits have been made in the past three years is the strongest argument for continuing the business.
A. What
B. Since
C. That
D. As
[单项选择]
There have been many great (21) . The first great invention was one that is still very important to day--the wheel. This made it easier to carry (22) things and to travel long distances.
In the early 1800s the world (23) to change. There was little unknown land left in the world. People did not have to explore much any more. They began to work instead to make life belier.
In the second half of the 19th century many great inventions were made. Among them were the camera, the electric light and the radio. These all became a big part (24) our life today.
The first part of the 20th century saw more great inventions: the helicopter in 1909, movies with sound in 1926, the computer in 1928, and jet planes in 1930. This was also a time (25) a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wore.
The middle part of the 20th century brought new ways to help people (26) disea
A. begin
B. open
C. started
D. start
