硅酸乙酯水解液涂挂包埋时,干燥箱中应放入哪种干燥剂()
A.浓硫酸
B.浓盐酸
C.浓硝酸
D.氨水
E.生石灰
参考答案:D
根据上下文,选择适当的句子补全对话。
Ann: (1) ________.
Joan: Yes, the wind is blowing now.
Ann: (2) ________.
Joan: It says it's sunny in the morning, but now...
Ann: (3) ________.
Joan: It's snowy. I don't like snow.
Ann: But I like it very much.
Joan: Why?
Ann: (4) ________.
Joan: What's your favourite weather?
Ann: I like the days in May. (5) ________.
Joan: Oh, we are quite different.
A. It's warm in this month.
B. What does the radio say?
C. Because I like cold and white.
D. How is the weather tomorrow?
E. The weather is not good.