问题
不定项选择
当汽车通过拱桥顶点的速度为10m/s时,车对桥顶的压力是车重的3/4,如果要汽车在粗糙的桥面行驶至桥顶时,恰好不受摩擦力的作用,则汽车通过桥顶点的速度应为[ ]
A.15m/s
B.20m/s
C.25m/s
D.30m/s
答案
答案:B
当汽车通过拱桥顶点的速度为10m/s时,车对桥顶的压力是车重的3/4,如果要汽车在粗糙的桥面行驶至桥顶时,恰好不受摩擦力的作用,则汽车通过桥顶点的速度应为[ ]
A.15m/s
B.20m/s
C.25m/s
D.30m/s
答案:B
根据短文内容,从方框中选出合适的词,并用其适当形式填空。 | |
of them every day and, over your lifetime, they may 2 ______ you more than anyone else you have met and will meet. So if your dad worships (崇拜) a football team, say, the Pittsburgh Steelers, you may grow up being a big 3______ of that football team. And if your mom loves to 4______, you might grow up just carrying a book wherever you go, just 5______ she does. But parents do a lot more than just pass along their 6______. Moms and dads need to care for their kids from the 7______ they're born. It's parents' task to love and guide kids - and most 8____ will do this as long as they live-even when the "kids" have 9______ up and have children of their own. That means you have many 10______ to share with your mom and dad. |
某企业2012年8月发生的经济业务及明细分类账如下。
要求:根据资料、总分类账和明细分类账的勾稽关系,将明细分类账中空缺的数字填上。
(1)4日,向A企业购入甲材料1000千克,单价17元,价款17000元;购入乙材料2500千克,单价9元,价款22500元。货物已验收入库,款项39500元尚未支付。(不考虑增值税,下同)
(2)8日,向B企业购入甲材料2000千克,单价17元,价款34000元,货物已验收入库,款项尚未支付。
(3)13日,生产车间为生产产品领用材料,其中领用甲材料1400千克,单价17元,价值23800元,领用乙材料3000千克,单价9元,价值27000元。
(4)23日,向A企业偿还前欠货款20000元,向B企业还前欠货款40000元,用银行存款支付。
(5)26日,向A企业购入乙材料1600千克,单价9元,价款14400元已用银行存款支付,货物同时验收入库。
原材料明细分类账 明细科目:甲材料数量单位:千克 | ||||||||||||
2012年 | 凭证编号 | 摘要 | 收入 | 发出 | 结存 | |||||||
月 | 日 | 数量 | 单价 | 金额 | 数量 | 单价 | 金额 | 数量 | 单价 | 金额 | ||
8 | 1 | 月初余额 | 400 | 17 | 6800 | |||||||
4 | 略 | 购入 | 1000 | 17 | (1) | 1400 | 17 | 23800 | ||||
8 | 购入 | 2000 | 17 | 34000 | (2) | 17 | (3) | |||||
13 | 领用 | 1400 | 17 | 23800 | 2000 | 17 | 34000 | |||||
31 | 合计 | 3000 | 17 | 51000 | (4) | 17 | (5) | 2000 | 17 | 34000 |