建构主义强调知识具有（）的特点。 A.主观性 B.客观性 C.普遍适应性 D.永恒性

Choose and write.智力问答。(选词填空)

1. -What animal has _____?

   -A camel.

2. -What animal has a ____   ?

    -A kangaroo.

3. -What animal has ____ ?

    -A tiger.

4. -What animal has a _____?

    -An elephant.

( )疥疮是由螨虫引起的接触传染性皮肤病。

“胜败乃兵家常事”告诉我们[ ]

A．要经常失败

B．要用乐观的态度对待挫折

C．不要怕失败

D．要勇于失败

情景对话。

请根据对话情景， 补全空中所缺部分。每空词数不限。

Morn: Morning, Tom!

Tom:    1   , Mom. I need some things for school. Can you help me, please?

Mom: Sure.

Tom: I need my dictionary.   2   ?

Mom: Er…It's on the bookcase.

Tom: And I    3   my notebooks.

Mom: Are they in the drawer?

Tom: No,     4   .

Mom: Oh, they're on the desk.

Tom: And my watch.

Mom: Is it on the table?

Tom: I don't know. Let me see. Yes,  5   .Thanks, Mom.

请举出至少三条评酒时的技巧。