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【简答题】
There are some photos of my family . There are four people in my family . Look at the photo ! My father is reading a book. My mother is cleaning the floor . My sister and I are doing our homework . It’s eight o’clock in the evening now. My father and mother are watching TV. My sister is playing with a doll, and I’m reading some new books . 小题1:How many people are there in the picture ? A．Two B．Three C．Four D．Five 小题2: What is my father doing now ? A．He’s reading a book. B．He’s watching TV. C．He’s playing chess . D．He’s drinking tea . 小题3:Is my mother cleaning the window now ? A．Yes, it is . B．Yes, she is . C．No, she isn’t . D．Sorry, I think so. 小题4: In the evening, my sister is ________. A．watching TV B．reading English C．playing with a doll D．doing her homework 小题5: Who’s reading some new books ? A．I B．My sister C．My father D．My mother
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A.
正确
B.
错误
【单选题】对流传质过程包括由于( )而引起的分子扩散和由于 流体的( )而引起的物质由一处向另一处的传递。( )
A.
浓度梯度和对流运动
B.
对流运动 和浓度梯度
C.
温度梯度和浓度梯度
D.
温度梯度和对流运动
【简答题】round(3.1415926,3)=( )
【简答题】请写出你所 积累 的描 写荷花的诗句 和出处,不少于3句。