不能用作分离剂的材料是 A．藻酸钠 B．肥皂水 C．蜡 D．石蜡

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问题单项选择题

不能用作分离剂的材料是

A．藻酸钠
B．肥皂水
C．蜡
D．石蜡油
E．甘油

答案

参考答案：C

解析：藻酸钠、肥皂水、石蜡油、甘油均可用作石膏与塑料之间的分离剂。

补全对话，情景问答

例:	— Is John catching butterflies? — Yes, he is.
1.	— Is ____________________________? — ______________________________.

选择题

After a few years development, Hai'an will surely _____ a modern city. [ ]

A. grow into

B. make into

C. come up

D. grow up