行政许可的实施和结果.除涉及国家秘密、商业秘密或者个人隐私的()
A.可以公开
B.应当公开
C.可以公布
D.应当公市
参考答案:B
如图所示,皮带始终保持v=6m/s的速度顺时针运转,一个质量为m=1.0kg、初速度为零的小物体放在传送带的左端,若物体与传送带之间的动摩擦因数μ=0.15,传送带左右两端距离为s=6.75m.(g取10m/s2)
(1)求物体从左端运动到右端的时间;
(2)设皮带轮由电动机带动,求物体在皮带上从左端运动到右端消耗的电能.
根据句子意思,用所给单词的适当形式填空。
1. How watermelons do we need? (much)
2. We still need ten . (orange)
3. Would you cut up some for me? (tomato)
4. Ten minutes for you to make your favorite . (sandwich)
5. Our teachers are to us. (friend)
6. What would you like ___________ (drink), tea or coffee?
7. Why ______ you ______ (not stay) at home? It's so cold outside.
8. Are you _________ (good) than Jim at speaking English?
9. Thanks for __________ (have) us to your party.
10. _________ (not drink) too much milk when you are hungry.