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问题 判断题

以OC为半径画弧[ ]

答案

错误

选择题

下列叙述中，正确的是[ ]

A．的溶液表示：1L溶液中含有

B．用天平称取

C．用的量筒量取浓盐酸

D．配制的硫酸溶液时，将量取的浓硫酸放入容量瓶中加入水稀释

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补全对话，情景问答
从方框内选择恰当的句子，补全对话。
W: Hi, Li Qiang.
M: Hi, Lucy.
W: It's December 23. Christmas Day (圣诞节) is coming, do you know?
M: Yes, the day after tomorrow. _______ (1)
W: _______ (2)
M: There are three important (重要的) holidays in China.
W: _______ (3)
M: New Year's Day, the Spring Festival, National Day. The Spring Festival is the most important.
     It is like Christmas in your country.
W: _______ (4)
M: It's usually (通常) in January or February.
W: _______ (5)
M: It's October 1st.
A. When is Spring Festival?
B. When is your National Day?
C. But it isn't a holiday in our country.
D. What are they?
E. What holidays do you have in China?
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