概算疏浚工程定额适用于()的 A.河流 B.湖泊 C.渠道、沿海机械疏浚及吹填工程 发布时间:2020-09-10 04:29 │ 来源:www.tikuol.com 题型:多项选择题 问题: 概算疏浚工程定额适用于()的A.河流B.湖泊C.渠道、沿海机械疏浚及吹填工程D.水库E.鱼塘
题型:多项选择题 某质点由A出发做直线运动,前5s向东行了30m经过B点,又行了5s前进了60m到达C点,在C点停了4s后又向西行,经过6s运动120m到达A点西侧的D点,如图所示,求: (1)每段时间内的平均速度; (2)求全过程的平均速度。(3)全程的平均速率. 查看答案
题型:多项选择题 选用所给的词语补全句子。 turn cut peel drink eat pour have add take put 1. How long does it ______ to get to school?2. I can't come. I ______ a really busy day .3. Mr Green likes to ______ sandwiches with lettuce.4. Let's ______ some banana milk shake .5. ______ some more salt to the popcorn, please.6. You have to ______ the banana before eating it.7. Can you help me ______ these tomatoes?8. Don't ______ waste water into the river.9. Next you need to ______ all these things into the blender.10.Finally, ______ on the blender and you'll get some fruit salad. 查看答案