纳税期限是指纳税人按照税法规定缴纳税款的期限,纳税人的具体纳税期限,由主管税务机关根据纳税人应纳税额的大小分别核定,不能按照固定期限纳税的,可以按次纳税。 ( )
参考答案:对
--- Mr Smith, please teach me how to draw on the computer today.
---Oh, no._______. You have to get familiar with the keyboard first.
A.Learn to walk before you run
B.It's never too old to learn
C.A good beginning is half done
D.The early bird catches the worm
蜻蜓的飞行动作灵活优美,这些动作的产生都是由神经系统支配的.______.