反射是通过___________，对外界或内部的各种刺激所发生的有规律的反应。 发布时间：2017-07-29 06:30 │ 来源：www.tikuol.com 题型：填空题 问题： 反射是通过___________，对外界或内部的各种刺激所发生的有规律的反应。
题型：填空题 下列液体均处于25℃，有关叙述正确的是 A．某物质的溶液pH <7，则该物质一定是酸或强酸弱碱盐B．用广泛pH试纸测得0.10 mol·L－1 NH4Cl溶液的pH＝5. 2C．pH=2的CH3COOH中c(H+)是pH=1的CH3COOH中c(H+)的2倍D．AgCl在相同物质的量浓度的CaCl2和HCl溶液中的Ksp相同 查看答案
题型：填空题 从方框中选择适当的选项填入短文中的横线上，使短文通顺、完整。选项中有两项是多余选项。 A. because B. doctor C. terribly D. said E. so F. inG. carefully H. on I.illness J. showed K. worried L. have Mr Harris lived 1.________ a small house by himself. He was always 2. ________ about whathe ate and drank, and he never went out when the weather was cold. He was always afraid that he was getting 3. ________111, so he often went to his 4. ________, andthe doctor was getting verytired of (厌烦) him, 5. ________he had more other work to do. Then one day Mr Harris hurried into the doctor's office and told him he was sure he had a terrible 6. ________, which he had read about in the newspaper. He 7. ________the doctor the article. The doctor read it 8. ________and then said, "But, Mr Harris, people don't know when they 9. ________ this illness! And they feel just well. ,, "Oh, my goodness," 10. ________Mr Harris. "I thought so. That's just what I feel! " 查看答案