单选题Why can all the astronauts sleep at the same time?
单选题______ that I wasn"t going to get much chance for promotion, I soon became bored with my work.
单选题One possible reason why spring is the best season for thinking is that ______ .
单选题[此试题无题干]
单选题The two best seasons for thinking seem to be ______ .
单选题According to the passage, many people can use ______ at the same time.
单选题—"Excuse me, could you please have my computer ______ ?" —"Of course."
单选题There is no evidence______ oil price will come down in the near future.
单选题Not long ago, business used computers just as tools to store information. But now computers have become much more than that. They"re the heart of many businesses. Computers allow information to flow within the company and from the company to its customers. But if computers stop working, the flow stops. Companies need IT (information technology) mangers to make sure their computers run smoothly. Then, companies can stay connected to the Internet, and their customers.
单选题The proposal______, we'll have to make another decision about when to start the project.
单选题______ breaks the law will be punished sooner or later.
单选题Linda feels exhausted because she ______ so many visitors today.
单选题Who can apply for a premium ticket from SAL according to the passage?
单选题She wanted to know ______ child it was on the grass.
单选题But there is at least one prediction that can be made with assurance.A) 但最终还是要做出一个明确的选择。B) 但至少要做出一个有把握的预测。C) 但至少存在一个明确的预言。D) 但至少可以有把握地做出一个预言。
单选题Because of the reduction of air pollution, this city now is a good place ______.
单选题Microcomputers are also known as ______ .
单选题It is required that anyone applying for a driver's license______ a set of tests.
单选题Ellsworth decided that climate and temperature have ______ .
单选题Not until quite recently ______ any idea of what a guided rocket is like.