几个
文中运用了大量叠词，如“清清楚楚”“哩哩啰啰”等。这些叠词主要有怎样的表达效果？列举几个四字叠词加以说明。
文中运用了大量叠词，如“清清楚楚”“哩哩啰啰”等。这些叠词主要有怎样的表达效果？列举几个四字叠词加以说明。
Which of the following can be cited as an example of the use of money in exchange for services?
Which of the following can be cited as an example of the use of money in exchange for services?
随着经济的发展和人口的增长，自然资源的消耗急剧上升，环境污染日益严重。从哲学上看，这种情况表明：（ ）。
随着经济的发展和人口的增长，自然资源的消耗急剧上升，环境污染日益严重。从哲学上看，这种情况表明：（ ）。
A few hundred years ago news did not _____.
A few hundred years ago news did not \_\_\_\__.
He told me that he had bought a music tape and _____ buy another one the next week.
He told me that he had bought a music tape and \_\_\_\__ buy another one the next week.