________of the relaxing time for Chinese people every day ________in watching TV.
A:Two thirds; are spent
B:Two thirds; is spent
C:Two third; are spent
D:Two third; is spent
根据你所掌握的历史知识,解释“正十年”一词所含的知识信息。
John is now working as an interpreter because he________an unusual ability to learn languages quickly.
下列哪项不是种子萌发所必需的( )
下列物质中,属于氧化物的是()