问题
单项选择题
进入呼吸道的粉尘通过各种清除功能，绝大部分均可能排出体外，具体是
A．97%～99%
B．94%～96%
C．91%～93%
D．88%～90%
E．85%～87%
答案
参考答案：A
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进入呼吸道的粉尘通过各种清除功能，绝大部分均可能排出体外，具体是
A．97%～99%
B．94%～96%
C．91%～93%
D．88%～90%
E．85%～87%
参考答案：A
| 用方框内所给词的适当形式填空。 | |
didn't know how to cook it. So she asked the shopkeeper 2______ down the way of cooking on a piece of paper. Then she put the paper 3______ her pocket and left the shop happily with the fish. On her way home, a white cat took the fish away from her and ran away at once. Mrs. Zhang ran after the cat 4______ she couldn't catch it. But suddenly she remembered 5______ and laughed. She shouted to the cat loudly,"You don't know how to cook the fish. The paper is still in my pocket!" |