Having entered the room, little Hans noticed many of the villagers ______ at the back of the classroom.
A. seat
B. seated
C. seating
D. to seat
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The book you want is not ______ now. I will let you know as soon as it is returned to the library.
A. useful
B. possible
C. available
D. practical
—Would you do me a favour and give me a ride —().
A. It's my pleasure
B. No trouble
C. That's all right
D. With pleasure
以下关于整型变量的说法不正确的是( )。
A. 为防止计算机高低字节储存顺序不同，通常用byte类型来表示数据可以避免出错。一般情况下都使用该类型
B. short 存储时占16位bit
C. int类型是最常用的整数类型，它存储时占32位bit
D. 天气预报的计算以及天体宇宙的计算都用long类型来表示
根据我国第三次人口普查所制定的职业分类标准，我国现有职业分为
A. 4大类
B. 8大类
C. 16大类
D. 64大类
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