检验检疫的补充证单可以单独使用有效。( )
参考答案：错
解析：[精解] 补充证单不可以单独使用，必须与原证单同时使用时才有效。
读对话，判断正(√)误(×)。
Lynn: Excuse me. Where is the post office?
Rose: It's near the Children's Park. You can go there by the No.1 bus.
Lynn: How can I get to the bus stop?
Rose: Turn left at the traffic lights.
Lynn: Thank you.
( ) 1. Lynn wants to go to the Children's Park.
( ) 2. Lynn goes to the post office by bus.
( ) 3. The bus stop is at the traffic lights.
皮肤表面散在触点以感受触觉，其中触点最丰富的区域是（）。
A.头皮
B.指端腹面
C.腹壁
D.大腿外侧
E.前臂外侧
