下列命题中,错误的命题个数是:( )(1)正数、负数和零统称有理数(2)无限小数是无理数(3)数轴上的点不是表示有理数,就是表示无理数(4)实数分正实数和负实数两类
A:1个
B:2个
C:3个
D:4个
两岸“三通”以来,大陆居民赴台旅游成为热点。下列风景名胜属于台湾的是( )
My mother is a teacher of E____. She is very k____ to her students. She always h____ them with their lessons. After class she often t____ to them and l____ to them carefully. My mother loves her job and she is n____ be late for work. She goes to work on foot. It takes her h____ an hour to get to school. All the pupils in my class like her i____ class.
以下关于动物的描述,正确的是( )