常温下，某溶液中由水电离出来的c(OH－)=1×10—11mol/L，若向该溶液

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问题选择题

常温下，某溶液中由水电离出来的c(OH^－)=1×10^—11mol/L，若向该溶液中滴入2—3滴酚酞，溶液的颜色可能是（）

A．只显红色

B．呈无色

C．无色或粉红

D．红色或无色

答案

答案：D

填空题

用所给动词的适当形式填空。

1. Look! They____(play) volleyball on the playground.

2. Tom usually has dinner at six. It's seven o'clock now. He______( have) his meal.

3. Do you like to go______( shop) with me? I want to buy a new dress.

4. Listen! Mom _______(cut) the toy. What does she want to do?

5. She! The baby________(sleep).

填空题

预算就是用（）编制未来某一时期的计划。