A．He went mountain climbing last year.

B．He hasn’t traveled around the world yet.

C．He’s always wanted to climb that mountain.

D．He definitely does not want to go.

关于指北针测量方向，哪种说法不对（）。

A.指北针测量方向时必须水平放置

B.北针测量时需要远离可能产生磁场的物体

C.指北针在铁塔上测量更加准确

D.指北针使用时需要尽量远离测量者的身体