下列说法中不正确的是[ ]
A、0是自然数,也是有理数
B、-a不一定是负数,+a不一定是正数
C、若a+b=0则a和b互为相反数
D、只有正数的绝对值等于它本身
答案:D
“打是亲、骂是爱、不管不叫要变坏。”对这句俗话认识正确的有[ ]
①父母有抚养、监护、教育子女的权利
②打骂子女也是教育子女,并无相当
③对于未成年人来说,要理解父母,正确的要接受,错误的要进行规劝
④子女应当自主自立,不必服从父母的管教
⑤父母有管教权利,应采取适当的方法
A、①②④
B、①③⑤
C、①②③⑤
D、①③④
根据句意及首字母提示填写单词,使句子意思完整。
1. Mr. Wang is very r________. He has quite a lot of money.
2. Kangkang is feeling truly sad. He f________ the English exam.
3. It's my dream to l________ on the moon one day.
4. Shanghai is in the e________ of China. It's a beautiful city.
5. I'm a s________ here. Can you tell me the way to the railway station?