原油含水通常采用（）分离器来进行脱出分离。
A、一相
B、二相
C、三相
D、四相
参考答案：C
把句子的序号写在相应的图片下。
( ) ( ) ( )
1. The picture is above the lamp. The lamp is below the picture.
2. The girl is beside the boy. The boy is beside the girl.
3. Where is Danny? He's in the library. He's reading a book.
蛋白质消化率最高的食品是()
A．馒头
B．米饭
C．乳类
D．大豆
E．肉类
