问题
多项选择题
计量的特点是（）
A．准确性
B.一致性
C.溯源性
D.法制性
答案
参考答案：A, B, C, D
搜题请搜索小程序“爱下问搜题”
计量的特点是（）
A．准确性
B.一致性
C.溯源性
D.法制性
参考答案：A, B, C, D
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| Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both __1__, plant a lot of trees. But this may not be the best way to make your home a __2__ place. Last week we visited a park in Hebei. We were __3__ to find most of the trees had been burned. The workers told us that the trees __4__ soon after they were planted because they weren’t watered well enough. __5__ workers burned them and cleaned the place for __6__ trees to be planted this year. __7__ a card found in one of the dead trees, a student wrote,” I hope this tree will grow up with me to __8__ the backbone (栋梁) of our country.” The workers said that the survival(存活) of the trees was really more important than __9__ trees were planted. Some people in Beijing now have a new idea that they can donate (捐赠) some money and let professional (专业人士) plant and __10__ the trees. | |||
| ( )1. A. students and teachers ( )2. A. smaller ( )3. A. pleased ( )4. A. died ( )5. A. Though ( )6. A. few ( )7. A. Over ( )8. A. need ( )9. A. how many ( )10. A. take out | B. old and young B. colder B. happy B. grew B. When B. old B. From B. hold B. when B. take down | C. boys and girls C. warmer C. interesting C. bought C. Because C. new C. On C. plant C. how soon C. take up | D. mother and father D. larger D. surprised D. planted D. So D. dead D. About D. be D. why D. take care of |