膝跳反射的感受器和效应器分别在[ ] A．膝盖上位韧带和腓肠_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

膝跳反射的感受器和效应器分别在[ ]

A．膝盖上位韧带和腓肠肌

B．膝盖下位韧带和腓肠肌

C．膝盖下位韧带和股四头肌

D．膝盖上位韧带和股四头肌

答案

答案：C

补全对话，情景问答

给问句选择相应的答语。

( ) 1. Can you play the piano?
( ) 2. Why do you need to put on your hat and scarf?
( ) 3. What is your mother doing?
( ) 4. What's her favourite season?
( ) 5. How are you going to Beijing?

A. By plane.
B. Yes, I can.
C. She is cooking in the kitchen.
D. Because it's cold outside.
E. Her favourite season is winter.

填空题

是______米，30米增加

米是______米．