如果直线ax+2y+2=0与直线3x-y-2=0平行,则系数a=( )
结合某区域地图,有关该区域的叙述,不正确的是( )
—_______ is the weather in New York?
—It's very cold, because it just snowed yesterday.
一艘科学考察船从A点(20°N,20°E)出发,到达与A点纬度相同,经线正好相对的B点,则B点的经度是( )
My brother broke the window ____(故意地)to enter the house.