读句子,将问句和答句连线。
①What’s the matter?____ A. Thank you.
②Let me help you. ____ B. Me, too.
③I have yellow hair. ____ C. My name is Mike.
④Do you hurt your hand?____ D. Yes, I do.
⑤What’s your name?____ E. I hurt my foot.
下列四种物质中,属于化合物的是( )
酵母菌和水螅在适宜的环境中通常以何种方式进行生殖( )。