The production of synthetics intensified the drain on energy resources, already sorely pressed by the increase in ______ demand.

单项选择题Moving down the hills and around the curves, the ______ of cars was not able to proceed faster than twenty miles an hour.

单项选择题Smoking should be banned in public places and great efforts should be made to inform young people of the ______ consequences of taking up the habit.

单项选择题Which of the following is TRUE according to the passage

单项选择题The reason that the exceptional children receive so much concern in education is that ______.

单项选择题From its passage we learn that the educational concern for exceptional children ______.

单项选择题In Paragraph 2, the author cites the example of the leading actor on the stage to show that ___.

单项选择题This passage mainly deals with ______.

单项选择题What is the writer's attitude to GM foods

单项选择题What happens to those insects when not killed by the spray of insecticide

单项选择题What can be inferred from the first paragraph