固定储罐的机械式呼吸阀冬季应检查呼吸阀内有无()。
A.冰冻
B.漏气
C.密封
D.敞口
参考答案:A
短文填空。
根据短文内容及所给首字母提示,写出所缺单词。
My s 1 holiday is in July and August. It starts on J 2 1st and ends on August 30th. D 3 my holiday
I will be very b 4 in the morning. I will take my dog for a walk. A 5 that, I will go to the Swimming Club
at 9 a.m. After lunch, I sleep for an hour, then in the evening, I will w 6 TV or do some r 7 . In my holiday I can do many i 8 things. I will have so much f 9 in the two m 10 .
依据我国《专利法》的规定,外观设计专利的保护范围应当根据( )确定。
A.说明书
B.权利要求书
C.实物模型或样品
D.请求书