物理小组用自己设计的位移传感器来探究滑块的简谐运动，其工作原理如图(a)所示，滑

比一比，组成词语。

厨（　　）柔（　　）乖（　　）币（　　）

橱（　　）揉（　　）乘（　　）吊（　　）

根据句意填入适当的单词。

1. "How _______ is Wang Nan?" " She is twenty-six."

2. Mary was born on September 16th. So that day is her ________.

3. "_________ is his school trip?" "It's March 2nd."

4. May is the fifth ________ of a year.

5. ________ 1st is Children's Day(儿童节).

想了解班上同学家里在一年内丢弃废塑料袋的个数，你认为可采用______调查合适．

“一带一路”的实质是一个国际区域合作网络。

公司制资产评估机构的注册资本不低于人民币( )万元。

A．30
B．50
C．100 D．500