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>> 成人高等教育 / 病原生物学
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成人高等教育 / 病原生物学
正确率：100%
有关质粒的叙述不正确的是:
- A、
质粒是细菌核质以外的遗传物质
- B、
质粒是细菌必备结构
- C、
质粒可自行复制
- D、
质粒是双股环状DNA
- E、
质粒可独立存在于细菌体内
佳题速递：
假设光检测器的输出电流从最大值的10％上升到90％所用时间为0.2ns，则光检测器的3dB调制带宽为A、5THzB、5GHzC、1.75THzD、1.75GHz光纤通信 甲状腺素与机体的免疫机能有密切关系 。 学前儿童健康教育 31、The undersea world is very beautiful. Now more and more people want to dive in the water to find the secrets there. Scuba（戴水肺） diving is a new sport today. It can take you into a wonderful undersea world.
You will find many strange animals in the sea. Some are like a school bus. Many sea animals give out light in the dark and some have sharp teeth.
During the day, there is enough light. Here, under the sea, everything is blue and green. When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in deep water for a long time. However, you can't dive too deep. And you must be very careful when you dive in deep water.
The deep sea is not an easy place to live in. It is cold, and it is dark, too. The deeper it is, the less sunlight there is. At about 3,000 feet, there is no light at all. It is very dark in the sea. Many fishes have no eyes. Some have big eyes. A few have eyes on one side.
Besides the coldness and the darkness, deep-sea animals face a third danger - other animals.
Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs. They need to find animals as food, and they have to try not to become other animals' meal.统考英语阅读理解 报告、请示属于上行文。公文写作 (单选题) ---- Is this house _ _ _ _ _ _ he was born?( )
---- No it’s beyond the big tree over there.
A、the oneB、thatC、whichD、/大学英语3 请谈谈在未来理想社会的认识上，马克思主义经典作家与空想社会主义者有何本质区别?马克思主义基本原理概论