单选题Insomnia, or “poor sleep”, can have bad effects on a persons health and general well-being. It can_____21on both our physical and mental health and can lead to other health_____22. Insomnia can b
单选题Sea levels are__________to rise between 7 and 23 inches by the end of 21st century.
单选题Not until the game had begun __ at the sports ground.
单选题选出下面读音不同的选项。
单选题Coconut椰子is an unusual food for many reasons.It is one of the largest edible seeds produced by any plant.Its unusual contents also make it unique in the seed world—it consists of both “meat“ and “wate
单选题 What enables some people to get big creative breakthroughs while others only get small and non-creative breakdowns, blaming themselves and society? Are some people gifted? Are there other factors 21
单选题Where do cars get their energy from? For most cars，the answer is petrol.21___________some cars use electricity.These cars have 22 __________motors that get their power from large batteries.In 23 ，ther
单选题There is nothing more possible than a new hip or knee that can put the spring back in your step. Patients receiving joint implants （移植） often are able to resume many of the physical activities they lo
单选题There is nothing more possible than a new hip or knee that can put the spring back in your step. Patients receiving joint implants （移植） often are able to resume many of the physical activities they lo
单选题Would you please let me finish my words? Don't __________ in the middle of a sentence.
单选题根据读音，选择合适的答案（ ）
单选题There aren't many wild pandas __________ in the world today.
单选题Women employees________the same salaries as men for doing the same work.
单选题Like any teenagers, the face of One Teen Story is changing fast. Just a year old,the monthlymagazine of short fiction for young people is getting a new editor-in-chief: Patrick Ryan ,47, the asso-ciat
单选题For generations，the Nganyi people of western Kenya have served as rainmarkers，helping local communities decide when best to prepare their land and SOW their seeds.By observing subtle changes in nature
单选题When you stretch out in the sun you can do one of three things. You can use no suntanoil. You can use an ordinary sun tan oil. Or you can use Bergasol.If you dont use any sun tan oil at all when
单选题As we recently discovered，there is a Stepmother’s Day，though it is not on any official holiday calendar.So，it would be safe to assume that there is a similar day for stepdads，too.Right? Well，it depend
单选题Most students choose “Homestay” accommodation when they study abroad：others select Homestay even if they are not on a study visit.Statistics show that it’s a form of accommodation gaining in popularit
单选题Never________ the weather been so bad in October.
单选题For generations，the Nganyi people of western Kenya have served as rainmarkers，helping local communities decide when best to prepare their land and SOW their seeds.By observing subtle changes in nature