-
-
>> 成人高等教育 / 医学免疫学
-
佳题速递：
窦房结兴奋快速传播到房室结，主要依靠 A、 前结间束 B、 后结间束 C、 中结间束 D、 心房肌 E、 心房内优势传导通路生理学（影像） 植物对光周期的反应，主要是黑暗长短在起作用。(A) 正确 (B) 错误观赏树木与栽培学 47、Bill turned the key in the heavy lock and put it calmly in his pocket. He did so from a certain kind of fear. This was the only entrance to the house. Though Tom would be away for at least three days, Bill had a strange feeling of his nearness. In the stillness he seemed to hear Tom's voice. He turned round quickly, but there was only the girl.
The girl carrying an oil lamp led Bill upstairs. She stopped and raised the lamp in each doorway, staring at him meanwhile. Satisfied he was the only guest, Bill came to the last door.
"You sleep here, sir," she said, giving him the lamp. "Your friend slept here, too."
"Good night, miss," he said politely.
Her lips moved in reply, but he didn't catch the words. Her eyes never for a moment left his face. He stepped in, and as he turned to close the door she was still standing there. In the silence he felt a little terrified now.
He shut the door in the girl's face then, leaving her in the dark. He opened it again almost at once. She had disappeared without a sound. A deep mistrust suddenly came to him. Why had that girl stared at him so?统考英语阅读理解 高等数学三：线性代数 5、Man has always wanted to fly. Even as long as eight hundred years ago, an Englishman had tried. He made a pair of _ _ 21 _ _ from chicken feathers and fixed them to his shoulders. Then he jumped from a tall building. As you can imagine, he did not fly very far. _ _ 22 _ _ , he fell to the ground and broke several bones. The first real attempt at flying took place in France in 1783. The two Mongolian brothers knew that hot air rose. If they could fill a large balloon with hot air, they thought it would rise into the air and _ _ 23 _ _ . They were right. They made a very large hot air balloon of cloth and paper. It measured ten meters in diameter. They filled it with hot air and the balloon got two hundred meters into the air. It fell to earth about three kilometers _ _ 24 _ _ .
At the next attempt, they arranged for a balloon to carry passengers. We do not know what the passengers felt about the trip as they were a cock, a duck, and a sheep. But we _ _ 25 _ _ know that the trip lasted eight minutes and the animals landed safely.统考英语完型填空 下列操作中，对硬盘寿命有影响的是_____。 计算机应用基础