用计算器求下列各式的值:
(1)sin47°;
(2)sin12°30′;
(3)cos25°18′;
(4)tan44°59′59″;
(5)sin18°+cos55°﹣tan59°.
解:根据题意用计算器求出:
(1)sin47°=0.7314;
(2)sin12°30′=0.2164;
(3)cos25°18′=0.9003;
(4)tan44°59′59″=1.0000;
(5)sin18°+cos55°﹣tan59=﹣0.7817.
王英经常对自己说:“我虽然个子不高,但也有许多优点,我是世界上独一无二的,我一定要加倍努力塑造更好的自我形象。”王英这是( )
根据短文内容,判断正确还是错误。
My name is Li Hong. I'm 16 years old. I have a lovely brother. His name is Li Qiang. He was short and thin two years ago. He was 1.58 m. He was 48 kg. He was a primary school student. He often watched TV and played games. He didn't like playing football. Now he is handsome. He is 14 years old. He is a junior high school student. He is 1.65m. He is 56kg. He is tall and fat. He is very strong, too. Sometimes he watches TV in the evening. He doesn't play games. He plays football and rides a bike every day.
下列属于国家采取经济手段进行宏观调控的是( )
①十八届三中全会明确经济体制改革是全面深化改革的重点
②中国人民银行对跨境贸易人民币结算试点进行总量控制
③财政部、商务部联合发布公告:今年老旧机动车报废补贴每辆1.8万元
④工信部向中国移动、中国联通和中国电信发放4G牌照
例:0.36=4×0.09 0.36=1.2×0.3 0.36=0.18×2
8.4