以下关于细菌和真菌的说法,错误的是( ) A.细菌比真菌个体更细小 B.真菌没有 发布时间:2017-05-07 00:18 │ 来源:www.tikuol.com 题型:选择题 问题: 以下关于细菌和真菌的说法,错误的是( )A.细菌比真菌个体更细小B.真菌没有真正的细胞核C.饭变馊主要由细菌造成,而发霉则是由真菌造成D.相对于细菌,真菌菌落多有外观可见的颜色
题型:选择题 完形填空。 Macao is only forty miles from Hong Kong and it is easy to reach. It is an interesting place and it has a long history. Macao is a part of China and most people 1 there are Chinese. The first Europeans to reach Macao came from Portugal. More than four 2 years ago the Portuguese went there to do business with Chinese. Some settled and 3 their homes there. They built strong forts to guard their city on the island. They also built churches, schools, hospitals and other places. Slowly the city 4 . People from many countries came to live and work in Macao. Today, many people visit Macao. Some only go there to 5 dog-racing or motor racing or to gamble. But Macao is a quiet and peaceful place. It is pleasant just to walk around and look at the old buildings and forts. You 6 you are back in the old days. Of course, some of the buildings are now in ruins. The church of St. Paul has only the front wall 7 steps leading up to it. But it is still interesting to see. When you are hot and tired, there are small cool gardens to rest 8 . When you are hungry, there are good restaurants with many 9 food. Nearby are some islands, which are also nice to visit and are easy to get to. There is certainly 10 to see and to do in Macao.( )1. A. live ( )2. A. hundreds( )3. A. make ( )4. A. began ( )5. A. see ( )6. A. know ( )7. A. with ( )8. A. on ( )9. A. pieces of( )10.A. much B. living B. hundred ofB. making B. grew B. look at B. like B. without B. in B. baskets ofB. many C. to live C. hundred C. to make C. made C. watch C. hope C. in C. with C. kinds ofC. a lot ofD. lived D. hundreds of D. made D. had D. find D. feel D. has D. / D. plates of D. lots of 查看答案
题型:选择题 根据国家中长期科技发展规划,到2020年我国科研开发投入经费将达到9000亿元,占GDP的2.5%。届时,经济发展对自然资源的依赖就能大大减少。这表明[ ]A、科技对经济增长的贡献将大幅提高B、自然资源不再是经济增长的重要源泉C、我国科研开发主要为农业发展服务D、科研开发投入与GDP增长无直接关系 查看答案
题型:选择题 在达成铁路复线工程中,某路段需要铺轨,先由甲工程队独做2天后,再由乙工程队独做3天刚好完成这项任务,已知乙工程队单独完成这项任务比甲工程队单独完成这项任务多用2天,求甲、乙工程队单独完成这项任务各需要多少天? 查看答案