【单选题】质点在t1时刻位矢为r1=5i+8j,t2时刻位矢r2=3i-6j,则t1--t2时间间隔的位移为
【单选题】----What about the weather here in winter? ----It’s _____warmer than in the north of this country .
【简答题】桑塔纳轿车电源系统电路如图 所示,分析其电路工作过程。
【简答题】If somebody is serious about selling a product or service in a foreign country, what could he think about such machine translation? Probably he _________________________.
【简答题】*氨基糖苷类抗生素的共同不良反应有_____________、____________、____________和______________。
【单选题】北格设计公司为增值税小规模纳税人,2018年6月提供设计服务取得含增值税价款206000元;因服务中止退还编织袋客户含增值税价款10300元。请问该公司当月应缴纳增值税税额的下列计算中,正确的是( )
C.
(206000-10300)/(1+3%)x3%=5700
D.
(206000-10300)x3%=5871
【简答题】The country that brings about the largest amount of global warming pollution is______.